WEBVTT 00:00:00.000 --> 00:00:01.960 Welcome to the Deep Dive, the place where we 00:00:01.960 --> 00:00:05.040 take a subject you think you know, stack up the 00:00:05.040 --> 00:00:07.400 source material, and shortcut you right to the 00:00:07.400 --> 00:00:10.080 most compelling, surprising, and essential nuggets 00:00:10.080 --> 00:00:13.259 of knowledge. And today, we are embarking on 00:00:13.259 --> 00:00:16.859 an exploration into a life story that is just, 00:00:16.940 --> 00:00:20.579 well, a testament to radical, relentless commitment. 00:00:21.140 --> 00:00:24.059 We're talking about Maria Salomea Skodowska Curie. 00:00:24.140 --> 00:00:26.429 Right. And it's not just some historic scientist 00:00:26.429 --> 00:00:28.789 in a textbook. Oh, not at all. We're looking 00:00:28.789 --> 00:00:31.620 at how one woman fought Really three different 00:00:31.620 --> 00:00:33.979 wars at the same time. There was the fight against 00:00:33.979 --> 00:00:36.299 an oppressive empire, the fight to understand 00:00:36.299 --> 00:00:38.920 the fundamental structure of the atom, and this 00:00:38.920 --> 00:00:42.219 relentless fight against institutional and societal 00:00:42.219 --> 00:00:44.939 prejudice. That framing, the three wars, that's 00:00:44.939 --> 00:00:46.820 perfect. Because our mission for you in this 00:00:46.820 --> 00:00:48.899 deep dive is to unpack the sources and show you 00:00:48.899 --> 00:00:51.259 how Marie Curie accomplished what seems, you 00:00:51.259 --> 00:00:53.000 know, completely impossible. She becomes the 00:00:53.000 --> 00:00:55.039 first woman to win a Nobel Prize. And the only 00:00:55.039 --> 00:00:57.659 person in history to win in two completely different 00:00:57.659 --> 00:01:01.179 scientific fields. Physics. chemistry and on 00:01:01.179 --> 00:01:04.159 top of that she breaks the highest academic ceiling 00:01:04.159 --> 00:01:07.159 becoming the first woman professor at the university 00:01:07.159 --> 00:01:09.640 of paris and the source material is so clear 00:01:09.640 --> 00:01:12.219 on this these massive achievements weren't just 00:01:12.219 --> 00:01:14.140 built on genius they were built on a foundation 00:01:14.140 --> 00:01:18.129 of I mean, sustained poverty, intense xenophobia, 00:01:18.209 --> 00:01:21.609 and just relentless sexism. So our deep dive 00:01:21.609 --> 00:01:23.989 gives you this detailed chronological look at 00:01:23.989 --> 00:01:26.290 her journey. We're going to trace her difficult, 00:01:26.409 --> 00:01:29.590 patriotic early years in Warsaw under Russian 00:01:29.590 --> 00:01:33.189 occupation, then her pioneering research in France 00:01:33.189 --> 00:01:36.760 that basically redefined physics. and then her 00:01:36.760 --> 00:01:39.239 global influence, her humanitarian work during 00:01:39.239 --> 00:01:41.579 the war, and ultimately her lasting, profound, 00:01:41.700 --> 00:01:44.900 and literally radioactive legacy. So let's start 00:01:44.900 --> 00:01:46.659 at the beginning. Okay, let's unpack this. We 00:01:46.659 --> 00:01:50.459 begin in Poland. So before she was the celebrated 00:01:50.459 --> 00:01:53.459 French icon Marie Curie, she was Maria Sklodowska. 00:01:53.700 --> 00:01:57.140 She was born in Warsaw on November 7, 1867. It's 00:01:57.140 --> 00:01:58.260 so important to understand this. It wasn't just 00:01:58.260 --> 00:02:01.519 Poland. This was Warsaw under the iron fist of 00:02:01.519 --> 00:02:03.810 the Russian Empire. A political reality that 00:02:03.810 --> 00:02:05.730 just defined everything about her early life 00:02:05.730 --> 00:02:08.750 and her ambition. Completely. I mean, that political 00:02:08.750 --> 00:02:11.310 context is absolutely vital. The family itself 00:02:11.310 --> 00:02:14.210 carried the scars of Polish resistance. Both 00:02:14.210 --> 00:02:16.629 her father's and her mother's families had lost 00:02:16.629 --> 00:02:19.009 their fortunes, their property. Why? What happened? 00:02:19.210 --> 00:02:21.310 Because of their patriotic involvement in these 00:02:21.310 --> 00:02:24.050 Polish national uprisings. The most recent one 00:02:24.050 --> 00:02:28.530 was the January uprising of 1863 to 65. So these 00:02:28.530 --> 00:02:31.319 losses, which were, you know. basically financial 00:02:31.319 --> 00:02:33.680 punishments for being a patriot, meant Maria 00:02:33.680 --> 00:02:36.759 and her siblings were facing this systemic financial 00:02:36.759 --> 00:02:39.740 struggle from day one. So poverty wasn't a choice 00:02:39.740 --> 00:02:42.580 for them. It was a political inheritance. And 00:02:42.580 --> 00:02:44.759 yet the household she grew up in was steeped 00:02:44.759 --> 00:02:47.159 in education. Oh, yes. Her parents were well 00:02:47.159 --> 00:02:49.860 -known teachers. Her father, Woody Sioskodowski, 00:02:50.039 --> 00:02:52.719 taught mathematics and physics. And this is where 00:02:52.719 --> 00:02:55.240 you start to see the first sort of quiet acts 00:02:55.240 --> 00:02:57.810 of defiance. How so? Well, the Russian authorities 00:02:57.810 --> 00:02:59.789 were systematically trying to suppress Polish 00:02:59.789 --> 00:03:02.129 intellectual life. That included eliminating 00:03:02.129 --> 00:03:04.629 laboratory instruction from Polish schools. They 00:03:04.629 --> 00:03:06.310 were afraid it might empower, you know, future 00:03:06.310 --> 00:03:08.289 generations of independent thinkers. So what 00:03:08.289 --> 00:03:11.590 did her father do? Woodiesel, in response, just 00:03:11.590 --> 00:03:13.930 brought the essential lab equipment home. He 00:03:13.930 --> 00:03:16.569 instructed his own children privately. So the 00:03:16.569 --> 00:03:19.310 source of her future scientific revolution, her 00:03:19.310 --> 00:03:21.629 early training in experimental physics, it was 00:03:21.629 --> 00:03:25.349 basically a small... clandestine act of patriotic 00:03:25.349 --> 00:03:28.150 resistance happening in their living room. That's 00:03:28.150 --> 00:03:30.530 an incredible origin story. What else was shaping 00:03:30.530 --> 00:03:32.370 her worldview in those early years? It sounds 00:03:32.370 --> 00:03:35.229 incredibly difficult. It was. And there was also 00:03:35.229 --> 00:03:37.830 this profound experience of loss. Maria, whose 00:03:37.830 --> 00:03:41.289 nickname Mania was, she was deeply affected by 00:03:41.289 --> 00:03:44.050 the death of her oldest sibling, Zofia from Typhus. 00:03:44.250 --> 00:03:47.979 And then her mother. Brona Soa died of tuberculosis 00:03:47.979 --> 00:03:50.780 when Maria was only 10. Wow. Both of them. Yeah. 00:03:50.919 --> 00:03:53.360 And the sources suggest that this double tragedy, 00:03:53.539 --> 00:03:55.099 especially seeing her mother's long suffering, 00:03:55.199 --> 00:03:57.340 it fundamentally challenged her religious faith. 00:03:57.419 --> 00:03:59.520 It led her to move away from Catholicism and 00:03:59.520 --> 00:04:01.639 eventually to become agnostic. So she graduates 00:04:01.639 --> 00:04:04.680 from secondary school, the gymnasium, in 1883, 00:04:04.819 --> 00:04:07.360 and she wins the gold medal, the highest honor. 00:04:07.719 --> 00:04:10.259 She's brilliant. She's driven. She's ready for 00:04:10.259 --> 00:04:12.620 university. And the system immediately slams 00:04:12.620 --> 00:04:14.969 the door in her face. As a woman in partitioned 00:04:14.969 --> 00:04:18.149 Poland, she could not enroll in any regular institution 00:04:18.149 --> 00:04:21.990 of higher education. Period. This barrier led 00:04:21.990 --> 00:04:24.209 her to seek out education wherever she could 00:04:24.209 --> 00:04:26.589 find it, which meant this clandestine network. 00:04:26.850 --> 00:04:29.490 It was called the Flying University. The Flying 00:04:29.490 --> 00:04:32.810 University? It sounds amazing. It was. An institution 00:04:32.810 --> 00:04:35.470 that operated in secret, constantly shifting 00:04:35.470 --> 00:04:38.790 locations, devoted to providing Polish patriotic 00:04:38.790 --> 00:04:41.509 higher education, and crucially, it admitted 00:04:41.509 --> 00:04:44.860 women. It just underscores how deeply interwoven 00:04:44.860 --> 00:04:47.620 education and national identity were for her 00:04:47.620 --> 00:04:50.199 generation. But this ambition had to be paid 00:04:50.199 --> 00:04:53.100 for somehow. It had to be financed by raw labor, 00:04:53.259 --> 00:04:55.680 which brings us to this crucial moment, the go 00:04:55.680 --> 00:04:57.480 -between agreement. This is the deal she makes 00:04:57.480 --> 00:04:59.540 with her sister, right? Yes, her elder sister, 00:04:59.699 --> 00:05:02.220 Bronisiawa. They strike this monumental deal. 00:05:02.839 --> 00:05:05.319 Maria would work for five years to pay for Bronisiawa's 00:05:05.319 --> 00:05:07.959 medical studies in Paris. And then Bronisiawa 00:05:07.959 --> 00:05:09.860 would do the same for her, providing assistance 00:05:09.860 --> 00:05:12.720 to fund Maria's own education. It's a stunning 00:05:12.720 --> 00:05:15.420 plan. It relies entirely on dedication and just 00:05:15.420 --> 00:05:18.139 years of delayed gratification. So Maria starts 00:05:18.139 --> 00:05:20.300 working, first as a home tutor, and then for 00:05:20.300 --> 00:05:22.740 two years as a governess. For the Urovsky family 00:05:22.740 --> 00:05:26.040 in a place called Chuky. And this period, well, 00:05:26.180 --> 00:05:27.839 it brought a lot of personal complexity that 00:05:27.839 --> 00:05:30.180 really tested her resolve. This is where she 00:05:30.180 --> 00:05:33.740 had her first serious heartbreak. Exactly. While 00:05:33.740 --> 00:05:36.160 she's employed by the Urovskys, she falls deeply 00:05:36.160 --> 00:05:39.399 in love with their son, Kazimierz Urovsky. He 00:05:39.399 --> 00:05:41.100 was a student at the time who would later become 00:05:41.100 --> 00:05:44.949 a... a very eminent mathematician. They actually 00:05:44.949 --> 00:05:47.449 plan to get married. But then once again, these 00:05:47.449 --> 00:05:51.370 forces of class and finance just crush her dreams. 00:05:52.500 --> 00:05:55.519 Kazimir's parents, they saw her only as the governess, 00:05:55.660 --> 00:05:58.500 the penniless relative, and they absolutely rejected 00:05:58.500 --> 00:06:01.120 the idea of the marriage. The sources show how 00:06:01.120 --> 00:06:03.920 immense the pain was for both of them. It wasn't 00:06:03.920 --> 00:06:06.639 just a brief crush. Not at all. It was a profound, 00:06:06.759 --> 00:06:09.639 formative loss. There's even this poignant detail 00:06:09.639 --> 00:06:11.379 in the sources that years later when Kazimir 00:06:11.379 --> 00:06:14.180 was a revered professor and rector at Krakow 00:06:14.180 --> 00:06:17.180 University, he would often just sit contemplating 00:06:17.180 --> 00:06:19.540 before the statue of Maria Skudowska that was 00:06:19.540 --> 00:06:22.300 erected in Warsaw. Wow. So that painful rejection 00:06:22.300 --> 00:06:24.860 really just cemented her focus away from romance 00:06:24.860 --> 00:06:27.980 and towards her singular goal. It did. And she 00:06:27.980 --> 00:06:30.300 had planned to work for two years. But gathering 00:06:30.300 --> 00:06:32.639 the money took her significantly longer, about 00:06:32.639 --> 00:06:34.600 a year and a half longer than she'd hoped. So 00:06:34.600 --> 00:06:36.720 how did she keep her scientific dreams alive 00:06:36.720 --> 00:06:39.360 while she's just working and saving day after 00:06:39.360 --> 00:06:42.480 day? She kept up with this rigorous self -education. 00:06:42.680 --> 00:06:45.120 And critically, she got practical scientific 00:06:45.120 --> 00:06:48.910 training between 1890 and 1891. She worked in 00:06:48.910 --> 00:06:51.029 a chemistry lab at the Museum of Industry and 00:06:51.029 --> 00:06:53.410 Agriculture. And this wasn't some amateur setup? 00:06:53.670 --> 00:06:56.410 No, not at all. This lab was run by her cousin, 00:06:56.550 --> 00:06:59.550 Yusuf Bogusky, who himself had been an assistant 00:06:59.550 --> 00:07:02.230 to the great Russian chemist, Dmitry Mendeleev. 00:07:02.649 --> 00:07:04.790 This hands -on experience meant she arrived in 00:07:04.790 --> 00:07:08.259 Paris not as a novice, but with real... foundational 00:07:08.259 --> 00:07:10.600 skills in experimental chemistry. So by late 00:07:10.600 --> 00:07:13.620 1891, at 24 years old, she finally has enough 00:07:13.620 --> 00:07:16.060 money and she leaves Poland to join her sister 00:07:16.060 --> 00:07:18.920 in Paris. I mean, you just can't overstate the 00:07:18.920 --> 00:07:21.120 willpower it took to endure years of emotionally 00:07:21.120 --> 00:07:24.399 painful labor just to chase a dream she was forbidden 00:07:24.399 --> 00:07:26.439 from achieving at home. She had already fought 00:07:26.439 --> 00:07:29.139 and won her first war, the fight against poverty 00:07:29.139 --> 00:07:33.160 and those institutional barriers. So she arrives 00:07:33.160 --> 00:07:36.300 in Paris, and Maria's Kodowska begins her new 00:07:36.300 --> 00:07:38.839 identity. She becomes Marie. She enrolls at the 00:07:38.839 --> 00:07:41.579 University of Paris, the Sorbonne, ready to just 00:07:41.579 --> 00:07:44.040 immerse herself in physics, chemistry, and mathematics. 00:07:44.439 --> 00:07:46.980 And this phase of her life, it's just characterized 00:07:46.980 --> 00:07:50.000 by this sheer academic drive, but it's mixed 00:07:50.000 --> 00:07:52.720 with this almost. Dickensian level of deprivation, 00:07:52.779 --> 00:07:54.279 especially when you look at her living situation 00:07:54.279 --> 00:07:57.379 in the Latin Quarter. Oh, absolutely. She deliberately 00:07:57.379 --> 00:08:00.519 rented a garret, an attic room. closer to the 00:08:00.519 --> 00:08:03.360 university. She was prioritizing proximity to 00:08:03.360 --> 00:08:06.120 knowledge over any kind of comfort. And living 00:08:06.120 --> 00:08:09.319 on nothing. Truly meager resources. The sources 00:08:09.319 --> 00:08:11.699 say she sometimes got so intensely focused on 00:08:11.699 --> 00:08:13.620 her studies that she would simply forget to eat. 00:08:13.819 --> 00:08:15.680 There was this stark image of her dedication. 00:08:16.000 --> 00:08:18.060 She would routinely wear all the clothes she 00:08:18.060 --> 00:08:20.720 owned, layer upon layer, just to generate enough 00:08:20.720 --> 00:08:23.500 body heat to survive the bitter Parisian winters 00:08:23.500 --> 00:08:26.519 in her unheated attic. That's just survival through 00:08:26.519 --> 00:08:29.779 sheer intellectual willpower. It is. But the 00:08:29.779 --> 00:08:33.460 dedication paid off, and quickly. By 1893, just 00:08:33.460 --> 00:08:36.039 two years in, she was awarded a degree in physics. 00:08:36.480 --> 00:08:39.659 And then, with the help of a fellowship, a fellowship, 00:08:39.740 --> 00:08:41.659 by the way, that she later insisted on paying 00:08:41.659 --> 00:08:43.700 back once she started earning money, she earned 00:08:43.700 --> 00:08:46.490 a second degree in 1894. What was she focused 00:08:46.490 --> 00:08:48.750 on right then before all the revolutionary work 00:08:48.750 --> 00:08:51.289 started? Her initial research project before 00:08:51.289 --> 00:08:53.970 she met Pierre was a practical one. She was investigating 00:08:53.970 --> 00:08:56.990 the magnetic properties of various steels. And 00:08:56.990 --> 00:08:58.929 it was while she was looking for lab space for 00:08:58.929 --> 00:09:01.950 this research that she met Pierre Curie in 1894. 00:09:02.519 --> 00:09:04.840 Right. They were introduced by a Polish physicist, 00:09:05.220 --> 00:09:07.919 Józef Wyrys -Kowalski. He thought Pierre might 00:09:07.919 --> 00:09:10.120 have some bench space available for her at his 00:09:10.120 --> 00:09:12.980 school, the ESPCI. And that professional request, 00:09:13.279 --> 00:09:15.200 well, it quickly evolved into something much, 00:09:15.220 --> 00:09:17.440 much deeper. Their connection was immediate and 00:09:17.440 --> 00:09:20.259 profound, forged entirely over their shared, 00:09:20.340 --> 00:09:23.200 mutual, almost religious devotion to science. 00:09:23.519 --> 00:09:26.299 Pierre proposed marriage, but Marie, she still 00:09:26.299 --> 00:09:28.360 had this idea of returning to Poland to serve 00:09:28.360 --> 00:09:31.549 her country, so she initially refused. And Pierre's 00:09:31.549 --> 00:09:33.529 reaction to that is just another testament to 00:09:33.529 --> 00:09:35.929 his commitment. He said he'd follow her. Right. 00:09:35.990 --> 00:09:37.990 He declared that if she returned to Poland, he 00:09:37.990 --> 00:09:40.009 would follow her, even if it meant giving up 00:09:40.009 --> 00:09:42.029 his own research and just teaching French classes 00:09:42.029 --> 00:09:45.029 there. That level of devotion, both personal 00:09:45.029 --> 00:09:47.909 and intellectual, is what persuaded her to reconsider. 00:09:48.350 --> 00:09:50.470 She did go back to Poland for the summer break 00:09:50.470 --> 00:09:53.389 in 1894, still hoping to get an academic job. 00:09:53.899 --> 00:09:56.820 But once again, academic prejudice showed its 00:09:56.820 --> 00:09:59.799 face. She was denied a post at Krakow University 00:09:59.799 --> 00:10:03.259 because of this pervasive academic sexism. That 00:10:03.259 --> 00:10:05.620 injustice, combined with Pierre's dedication, 00:10:06.000 --> 00:10:08.279 was really the final factor that convinced her 00:10:08.279 --> 00:10:10.539 that her future and the future of her research 00:10:10.539 --> 00:10:14.100 was in Paris and with Pierre. So they get married 00:10:14.100 --> 00:10:18.419 on July 26, 1895, and they opt for a simple civil 00:10:18.419 --> 00:10:21.110 ceremony. I love the anecdote about her wedding 00:10:21.110 --> 00:10:24.070 dress. Or lack thereof. Her practical dark blue 00:10:24.070 --> 00:10:26.529 outfit served as her working laboratory attire 00:10:26.529 --> 00:10:28.970 for years afterward. It just perfectly encapsulates 00:10:28.970 --> 00:10:31.309 her priorities. And their shared life was immediately 00:10:31.309 --> 00:10:34.169 shaped by these revolutionary scientific discoveries 00:10:34.169 --> 00:10:37.269 happening all around them. Absolutely. 1895, 00:10:37.710 --> 00:10:41.110 Wilhelm Röntgen announces X -rays. Then, a year 00:10:41.110 --> 00:10:44.330 later, in 1896, Henri Becquerel reveals that 00:10:44.330 --> 00:10:47.730 uranium salts spontaneously emit these penetrating 00:10:47.730 --> 00:10:50.330 rays. This latter discovery was the catalyst. 00:10:50.610 --> 00:10:52.970 It became the topic for Marie's doctoral thesis. 00:10:53.210 --> 00:10:55.370 She needed a topic, and Becquerel's rays were 00:10:55.370 --> 00:10:57.809 this mystery just waiting to be solved. So how 00:10:57.809 --> 00:11:00.149 did she go beyond just observing them and really 00:11:00.149 --> 00:11:02.549 pioneer the field? She used the most sensitive 00:11:02.549 --> 00:11:05.049 equipment she could find, a highly specialized 00:11:05.049 --> 00:11:08.029 electrometer. This device had actually been developed 00:11:08.029 --> 00:11:10.909 by Pierre and his brother Jacques. It was based 00:11:10.909 --> 00:11:13.250 on the principle of quartz piezoelectricity. 00:11:13.309 --> 00:11:15.169 And it could do what, exactly? It could precisely 00:11:15.169 --> 00:11:17.289 measure the faint electrical current caused by 00:11:17.289 --> 00:11:20.110 the rays ionizing the air around a sample. So 00:11:20.110 --> 00:11:21.990 it was a quantitative approach to what had been, 00:11:22.110 --> 00:11:24.629 until then, a qualitative mystery. So she's not 00:11:24.629 --> 00:11:26.950 just seeing the rays, she's rigorously measuring 00:11:26.950 --> 00:11:29.570 their power in different compounds. And what 00:11:29.570 --> 00:11:32.269 was the critical finding from all this? The finding 00:11:32.269 --> 00:11:36.279 was elegantly simple, but also... Fundamentally 00:11:36.279 --> 00:11:38.700 destabilizing. She discovered that the activity 00:11:38.700 --> 00:11:40.759 of the uranium compounds depended only on the 00:11:40.759 --> 00:11:43.500 quantity of uranium present. That's it. That's 00:11:43.500 --> 00:11:45.399 it. It didn't matter what state the uranium was 00:11:45.399 --> 00:11:48.820 in, powdered, massive, wet, dry, what other molecules 00:11:48.820 --> 00:11:51.000 it was bonded to, none of that mattered. Which 00:11:51.000 --> 00:11:53.879 is the aha moment that changed physics. Because 00:11:53.879 --> 00:11:55.379 if the activity has nothing to do with molecular 00:11:55.379 --> 00:11:57.059 interactions, where else could it be coming from? 00:11:57.120 --> 00:12:00.299 It forces a single conclusion. The radiation. 00:12:00.889 --> 00:12:03.610 must be an inherent property of the atom itself. 00:12:03.990 --> 00:12:07.549 And that hypothesis was the critical revolutionary 00:12:07.549 --> 00:12:10.389 step. Up to this point, the prevailing model 00:12:10.389 --> 00:12:12.789 from John Dalton held that atoms were indivisible, 00:12:12.830 --> 00:12:15.769 they were immutable, the ultimate, unchanging 00:12:15.769 --> 00:12:18.750 building blocks of matter. Marie Curie's data 00:12:18.750 --> 00:12:20.629 showed the atom was not static, it was dynamic, 00:12:20.809 --> 00:12:22.590 it was powerful, it was the first real crack 00:12:22.590 --> 00:12:24.929 in the structure of classical physics. And she 00:12:24.929 --> 00:12:27.330 didn't stop with uranium. She quickly found that 00:12:27.330 --> 00:12:29.470 another element, thorium, was doing the same 00:12:29.470 --> 00:12:31.850 thing. She had established the existence of a 00:12:31.850 --> 00:12:35.029 completely new physical phenomenon. Okay, so 00:12:35.029 --> 00:12:37.590 the next step was just pure observation. But 00:12:37.590 --> 00:12:41.090 it led to years of this just punishing labor. 00:12:41.950 --> 00:12:44.309 Marie's systematic measurements showed that some 00:12:44.309 --> 00:12:46.690 uranium minerals, especially pitchblende and 00:12:46.690 --> 00:12:49.690 torbronite, were far more active than pure uranium. 00:12:50.330 --> 00:12:52.909 Pitchblende was four times as active. Right. 00:12:53.240 --> 00:12:55.740 And the scientific logic from that is inescapable. 00:12:55.860 --> 00:12:58.159 These minerals must contain small quantities 00:12:58.159 --> 00:13:00.740 of another substance, some unknown element that 00:13:00.740 --> 00:13:03.120 was far, far more intensely active than uranium. 00:13:03.399 --> 00:13:05.759 And that observation immediately pivots her research 00:13:05.759 --> 00:13:08.759 from just analyzing a phenomenon to this focused 00:13:08.759 --> 00:13:11.320 hunch for new elements. And Pierre was so intrigued, 00:13:11.419 --> 00:13:13.600 so convinced by her findings, that he dropped 00:13:13.600 --> 00:13:16.399 his own advanced work on crystals in mid -1898 00:13:16.399 --> 00:13:18.710 to join her. Her doctoral thesis effectively 00:13:18.710 --> 00:13:21.309 became this joint revolutionary endeavor. And 00:13:21.309 --> 00:13:22.590 this is where we have to talk about the working 00:13:22.590 --> 00:13:24.509 conditions. I mean, their laboratory was the 00:13:24.509 --> 00:13:26.289 stuff of legend, but for all the wrong reasons. 00:13:26.570 --> 00:13:30.830 It was a disaster. A poorly ventilated, non -waterproof 00:13:30.830 --> 00:13:34.490 converted shed next to the ESPCI. It used to 00:13:34.490 --> 00:13:37.070 be a medical dissecting room. The sources describe 00:13:37.070 --> 00:13:40.250 leaky ceilings, freezing winters, zero proper 00:13:40.250 --> 00:13:43.259 ventilation. And the devastating tragic irony 00:13:43.259 --> 00:13:46.019 of it all is that they had no idea of the dangers. 00:13:46.340 --> 00:13:49.539 They were handling massive quantities of highly 00:13:49.539 --> 00:13:52.559 radioactive substances completely unprotected. 00:13:52.679 --> 00:13:54.740 And they were fascinated by it. They'd often 00:13:54.740 --> 00:13:57.159 note the faint light the materials emitted in 00:13:57.159 --> 00:13:59.200 the dark. Before we get to the elements themselves, 00:13:59.620 --> 00:14:01.840 you should mention Marie's fierce insistence 00:14:01.840 --> 00:14:04.480 on intellectual priority. She wanted credit for 00:14:04.480 --> 00:14:06.740 her work. And she deserved it. She was terrified 00:14:06.740 --> 00:14:09.039 that others might quickly capitalize on her idea, 00:14:09.120 --> 00:14:11.279 so she rushed to publish her initial findings. 00:14:11.559 --> 00:14:13.840 Her paper was presented to the Académie des Sciences 00:14:13.840 --> 00:14:16.100 by her former professor, Gabriel Lippmann, in 00:14:16.100 --> 00:14:19.320 April 1898. She was actively fighting that historical 00:14:19.320 --> 00:14:21.759 tendency to just overlook the work of women scientists. 00:14:22.100 --> 00:14:24.240 And that insistence secured her place in history. 00:14:24.379 --> 00:14:27.620 In July of 1898, they published their first major 00:14:27.620 --> 00:14:29.779 discovery. The announcement of the first new 00:14:29.779 --> 00:14:31.879 element. They named it Polonium. And the name 00:14:31.879 --> 00:14:34.179 itself was a political statement. Oh, absolutely. 00:14:34.419 --> 00:14:37.500 It was explicitly to honor Marie's native Poland, 00:14:37.720 --> 00:14:40.059 which, as we said, was still partitioned by three 00:14:40.059 --> 00:14:43.100 empires. Yeah. It's widely thought that polonium 00:14:43.100 --> 00:14:44.919 might have been the first element ever named 00:14:44.919 --> 00:14:47.580 to highlight a political question, linking her 00:14:47.580 --> 00:14:50.259 science directly to her deep -seated patriotism. 00:14:50.360 --> 00:14:53.679 And just five months later, December 26, 1898, 00:14:54.000 --> 00:14:56.879 they announce a second element. Radium. named 00:14:56.879 --> 00:14:59.740 from the Latin word for ray. And most enduringly 00:14:59.740 --> 00:15:02.639 in the process of all this, they coined the overarching 00:15:02.639 --> 00:15:06.360 term for this new field, radioactivity. These 00:15:06.360 --> 00:15:08.580 announcements were triumphs, but they created 00:15:08.580 --> 00:15:11.759 this immediate, immense challenge. To prove it, 00:15:11.779 --> 00:15:14.159 to satisfy the skeptical scientific community, 00:15:14.460 --> 00:15:17.120 they had to isolate pure, measurable samples. 00:15:17.159 --> 00:15:19.120 Right. It's not enough to say it's there. You 00:15:19.120 --> 00:15:20.659 have to hold it in your hand. And this is the 00:15:20.659 --> 00:15:22.440 part of the story that turns Marie Curie from 00:15:22.440 --> 00:15:24.840 a brilliant theorist into, well, an industrial 00:15:24.840 --> 00:15:27.840 pioneer. They quickly realized their initial 00:15:27.840 --> 00:15:30.340 100 grams of pitch blend wasn't going to cut 00:15:30.340 --> 00:15:32.799 it. Not even close. Because these elements were 00:15:32.799 --> 00:15:35.440 present in such minute trace quantities, I mean 00:15:35.440 --> 00:15:37.600 way less than one part per million, they realized 00:15:37.600 --> 00:15:40.340 they needed tons of the ore. They secured cheap 00:15:40.340 --> 00:15:42.539 mining residue from an Austrian mining company. 00:15:42.820 --> 00:15:45.919 And their poorly ventilated shed effectively 00:15:45.919 --> 00:15:49.700 became a small, intensely radioactive chemical 00:15:49.700 --> 00:15:52.259 factory. And describing the physical labor barely 00:15:52.259 --> 00:15:54.519 does it justice. This was chemical separation 00:15:54.519 --> 00:15:59.200 on an industrial scale. They were crushing, dissolving, 00:15:59.220 --> 00:16:03.600 heating. Literally tons of material. And the 00:16:03.600 --> 00:16:05.919 chemistry of radium made it uniquely difficult. 00:16:06.120 --> 00:16:08.379 That's right. Polonium was chemically similar 00:16:08.379 --> 00:16:10.620 to bismuth, which made its preliminary separation 00:16:10.620 --> 00:16:13.220 relatively straightforward. Radium, however, 00:16:13.320 --> 00:16:15.940 was a nightmare. It's chemically related to barium, 00:16:16.039 --> 00:16:18.299 and barium was also abundant in the pitchblende 00:16:18.299 --> 00:16:20.440 residue. And their chemical properties are almost 00:16:20.440 --> 00:16:23.259 identical. Almost identical. Which makes separating 00:16:23.259 --> 00:16:25.299 them extraordinarily challenging. So how do you 00:16:25.299 --> 00:16:27.539 separate two elements that behave in almost the 00:16:27.539 --> 00:16:29.960 exact same way? They had to use this tedious, 00:16:30.159 --> 00:16:33.100 almost medieval process called differential crystallization. 00:16:33.559 --> 00:16:36.379 It relies on this incredibly slight difference 00:16:36.379 --> 00:16:39.159 in the solubility of radium chloride compared 00:16:39.159 --> 00:16:41.600 to barium chloride. You dissolve the mixture, 00:16:41.820 --> 00:16:44.639 you let the salts crystallize, and then you scrape 00:16:44.639 --> 00:16:46.980 off the first crystals that form, which would 00:16:46.980 --> 00:16:49.059 have a slightly higher concentration of the radium. 00:16:49.159 --> 00:16:51.320 And this wasn't a one -and -done process. Oh, 00:16:51.340 --> 00:16:54.070 far from it. This required repeating that whole 00:16:54.070 --> 00:16:57.169 process, crystallizing, dissolving, recrystallizing 00:16:57.169 --> 00:17:01.330 thousands of times. Literally thousands of fractional 00:17:01.330 --> 00:17:03.649 crystallizations to get any significant level 00:17:03.649 --> 00:17:05.630 of purity. I mean, the physical toll must have 00:17:05.630 --> 00:17:07.950 been immense. Marie later described carrying 00:17:07.950 --> 00:17:10.930 20 kilogram samples, stirring boiling vats with 00:17:10.930 --> 00:17:14.019 an iron rod. All in that unheated, leaky shed 00:17:14.019 --> 00:17:16.720 with corrosive fumes. This was four years of 00:17:16.720 --> 00:17:19.420 grueling, relentless physical and chemical labor. 00:17:19.579 --> 00:17:21.440 And the yield for all that sacrifice, what did 00:17:21.440 --> 00:17:23.900 they get? From one ton of pitch blend, they obtained 00:17:23.900 --> 00:17:26.500 one -tenth of a gram of radium chloride in 1902. 00:17:26.779 --> 00:17:29.160 One -tenth of a gram. That tiny, glowing amount 00:17:29.160 --> 00:17:31.980 was the physical proof they needed. Marie later 00:17:31.980 --> 00:17:34.700 managed to isolate pure radium metal in 1910. 00:17:35.140 --> 00:17:37.619 But she never did isolate polonium metal because 00:17:37.619 --> 00:17:40.799 its half -life is just too short, only 138 days. 00:17:41.519 --> 00:17:43.980 But the results of this labor weren't just abstract 00:17:43.980 --> 00:17:46.579 physics. They had immediate, tangible medical 00:17:46.579 --> 00:17:49.500 applications, even before the Nobel. Yes, they 00:17:49.500 --> 00:17:53.119 published 32 papers between 1898 and 1902. One 00:17:53.119 --> 00:17:54.960 of them included the critical observation that 00:17:54.960 --> 00:17:57.960 diseased, tumor -forming cells seem to be destroyed 00:17:57.960 --> 00:18:00.859 faster than healthy cells when exposed to radium. 00:18:01.140 --> 00:18:04.019 That fundamental insight was the key that unlocked 00:18:04.019 --> 00:18:06.759 the door to radiation therapy. It laid the entire 00:18:06.759 --> 00:18:09.750 groundwork for modern cancer treatment. So the 00:18:09.750 --> 00:18:12.690 scientific world was just stunned by the Curie's 00:18:12.690 --> 00:18:15.210 output. And that led pretty swiftly to the recognition 00:18:15.210 --> 00:18:17.789 they deserved or, well, almost failed to receive. 00:18:17.970 --> 00:18:20.349 Right. In 1903, the Nobel Prize in Physics was 00:18:20.349 --> 00:18:23.289 awarded to Marie Curie, Pierre Curie and Henri 00:18:23.289 --> 00:18:25.349 Becquerel for their joint research on radiation. 00:18:25.789 --> 00:18:27.849 But even to this absolute pinnacle of global 00:18:27.849 --> 00:18:29.769 recognition, that deeply entrenched institutional 00:18:29.769 --> 00:18:32.769 sexism tried to sideline her. The committee didn't 00:18:32.769 --> 00:18:35.809 originally include her, did they? No. They initially 00:18:35.809 --> 00:18:39.549 intended to honor only the men. Pierre and Becquerel. 00:18:40.309 --> 00:18:42.789 Marie's pivotal role, I mean, coming up with 00:18:42.789 --> 00:18:44.730 the thesis, coining the term, discovering the 00:18:44.730 --> 00:18:47.710 elements, was almost ignored. So what happened? 00:18:47.789 --> 00:18:50.089 How did she get included? Her inclusion was only 00:18:50.089 --> 00:18:53.390 secured because a Swedish mathematician, Magnus 00:18:53.390 --> 00:18:55.910 Gustav Mittig Leffler, who was a champion for 00:18:55.910 --> 00:18:58.549 women in science, he alerted Pierre to the situation. 00:18:59.329 --> 00:19:01.690 Pierre then complained directly to the committee. 00:19:01.990 --> 00:19:04.940 And only then was Marie's name included. That 00:19:04.940 --> 00:19:07.759 detail is so crucial. It shows her victory wasn't 00:19:07.759 --> 00:19:10.079 just against the atom. It was against the establishment 00:19:10.079 --> 00:19:12.759 itself. She becomes the first woman to win a 00:19:12.759 --> 00:19:15.240 Nobel Prize, but only after her husband had to 00:19:15.240 --> 00:19:17.720 intervene. And in a classic Curie move, they 00:19:17.720 --> 00:19:19.779 didn't even attend the initial ceremony in Stockholm. 00:19:19.980 --> 00:19:23.039 They cited busy work schedules, peers failing 00:19:23.039 --> 00:19:25.319 health, and just a general dislike of public 00:19:25.319 --> 00:19:27.819 events. They deliver their acquired Nobel lecture 00:19:27.819 --> 00:19:30.920 later in 1905. The immediate practical benefit 00:19:30.920 --> 00:19:33.220 of the award money, though, was critical. It 00:19:33.220 --> 00:19:35.420 let them finally hire their first desperately 00:19:35.420 --> 00:19:38.279 needed laboratory assistant. But just as their 00:19:38.279 --> 00:19:40.839 careers reached this peak, tragedy struck with 00:19:40.839 --> 00:19:44.529 devastating speed. Hmm. On April 19th, 1906, 00:19:44.829 --> 00:19:46.869 Pierre Curie was walking across a Paris street 00:19:46.869 --> 00:19:49.630 in a rainstorm. He slipped and was instantly 00:19:49.630 --> 00:19:52.049 struck and run over by a heavy horse -drawn delivery 00:19:52.049 --> 00:19:54.589 vehicle. It fractured his skull and killed him 00:19:54.589 --> 00:19:56.970 instantly. Just done. Gone. Marie must have been 00:19:56.970 --> 00:19:58.970 absolutely shattered. How did the sources describe 00:19:58.970 --> 00:20:01.490 her reaction? Her ability to keep going after 00:20:01.490 --> 00:20:04.329 that? They describe a woman in profound, isolated 00:20:04.329 --> 00:20:07.809 grief. but at the same time driven by this almost 00:20:07.809 --> 00:20:11.170 unstoppable scientific engine. She internalized 00:20:11.170 --> 00:20:13.410 the loss, but she channeled her energy instantly 00:20:13.410 --> 00:20:16.369 into fulfilling Pierre's scientific dream. She 00:20:16.369 --> 00:20:18.250 wrote about her determination to continue the 00:20:18.250 --> 00:20:20.130 work, feeling it was the only way she could honor 00:20:20.130 --> 00:20:22.170 him. A month after his death, the University 00:20:22.170 --> 00:20:24.670 of Paris finally recognized her individual merit. 00:20:25.029 --> 00:20:27.170 They offered Marie the chair of physics that 00:20:27.170 --> 00:20:29.250 had been created for Pierre. And she accepted 00:20:29.250 --> 00:20:31.950 it. She was motivated by the express hope of 00:20:31.950 --> 00:20:34.109 creating that world -class laboratory they had 00:20:34.109 --> 00:20:36.490 always dreamed of, a proper facility, not a shed. 00:20:36.890 --> 00:20:39.789 And by accepting, she broke yet another massive 00:20:39.789 --> 00:20:42.309 institutional barrier. She became the first woman 00:20:42.309 --> 00:20:44.509 professor at the University of Paris in 1906. 00:20:44.849 --> 00:20:48.170 Her work just accelerated from there. In 1910, 00:20:48.349 --> 00:20:52.849 she finally isolates pure metallic radium. And 00:20:52.849 --> 00:20:54.750 just as importantly, she defines an international 00:20:54.750 --> 00:20:57.410 standard for radioactive emissions. Which was 00:20:57.410 --> 00:21:00.930 eventually named the Curie. See? After the couple. 00:21:00.990 --> 00:21:03.309 She was now the undisputed global authority in 00:21:03.309 --> 00:21:05.369 her field. But that institutional resistance 00:21:05.369 --> 00:21:08.450 in France, it hadn't disappeared. No, it was 00:21:08.450 --> 00:21:11.089 just dormant. Yeah. In 1911, she tried to get 00:21:11.089 --> 00:21:13.470 elected to the French Academy of Sciences, a 00:21:13.470 --> 00:21:16.529 crowning achievement. She failed. She lost by 00:21:16.529 --> 00:21:18.609 just one or two votes. They selected a man named 00:21:18.609 --> 00:21:21.109 Edouard Branly instead. And this rejection was 00:21:21.109 --> 00:21:23.369 driven by something much more sinister than just 00:21:23.369 --> 00:21:25.529 academic disagreement. Oh, absolutely. It was 00:21:25.529 --> 00:21:28.809 a vicious combination of sexism and rampant xenophobia. 00:21:29.109 --> 00:21:31.869 The right -wing French press sieved on the Academy 00:21:31.869 --> 00:21:34.829 vote to vilify her. They painted her as a foreign 00:21:34.829 --> 00:21:37.470 atheist interloper. They questioned her loyalty 00:21:37.470 --> 00:21:39.890 to France. It was an intense nationals campaign. 00:21:40.190 --> 00:21:42.789 And that institutional exclusion fueled by xenophobia 00:21:42.789 --> 00:21:45.410 was quickly followed by this explosion of personal 00:21:45.410 --> 00:21:48.150 scandal that the tabloids weaponized. Also in 00:21:48.150 --> 00:21:51.779 1911, yes. The press sensationally revealed her 00:21:51.779 --> 00:21:54.680 year -long affair with Paul Langevin. He was 00:21:54.680 --> 00:21:56.759 a brilliant French physicist, a former student 00:21:56.759 --> 00:21:59.140 of Pierre's, but he was married and estranged 00:21:59.140 --> 00:22:00.920 from his wife. And the press just went into a 00:22:00.920 --> 00:22:03.619 frenzy. How did the narrative they pushed against 00:22:03.619 --> 00:22:06.759 her escalate things? They demonized her. Marie, 00:22:07.000 --> 00:22:10.059 who was five years older than Langevin, was viciously 00:22:10.059 --> 00:22:12.710 portrayed as a foreign... Jewish homewrecker, 00:22:12.849 --> 00:22:15.630 even though she was agnostic. The scandal got 00:22:15.630 --> 00:22:18.009 so intense that an angry mob actually gathered 00:22:18.009 --> 00:22:20.450 outside her home. She and her daughters had to 00:22:20.450 --> 00:22:22.769 seek refuge with friends. It was a terrifying 00:22:22.769 --> 00:22:25.769 public shaming campaign. Rooted entirely in prejudice 00:22:25.769 --> 00:22:28.490 against her gender and her national origin. Completely. 00:22:28.809 --> 00:22:31.670 But despite this onslaught, the Royal Swedish 00:22:31.670 --> 00:22:34.650 Academy of Sciences stood firm on her scientific 00:22:34.650 --> 00:22:37.069 contributions. And they awarded her the 1911 00:22:37.069 --> 00:22:40.140 Nobel Prize in Chemistry. This one was specifically 00:22:40.140 --> 00:22:42.740 in recognition of her services to the advancement 00:22:42.740 --> 00:22:45.000 of chemistry by the discovery of the elements 00:22:45.000 --> 00:22:47.680 radium and polonium. By the isolation of radium 00:22:47.680 --> 00:22:49.319 and the study of the nature and compounds of 00:22:49.319 --> 00:22:51.799 this remarkable element. But even the Nobel Committee 00:22:51.799 --> 00:22:54.839 got nervous about the scandal. The chairman, 00:22:55.059 --> 00:22:57.039 Symphante Arrhenius, actually tried to prevent 00:22:57.039 --> 00:22:59.819 her from attending the ceremony. He did. He argued 00:22:59.819 --> 00:23:03.440 that her questionable moral standing was, you 00:23:03.440 --> 00:23:05.539 know, incompatible with the honor. And Marie 00:23:05.539 --> 00:23:07.599 Curie's response to him is maybe her greatest 00:23:07.599 --> 00:23:09.960 defense against all this societal pressure. It's 00:23:09.960 --> 00:23:12.819 incredible. She replied unequivocally that the 00:23:12.819 --> 00:23:15.220 prize was given for her scientific work. And 00:23:15.220 --> 00:23:17.900 there was, and I'm quoting here, no relation 00:23:17.900 --> 00:23:20.720 between her scientific work and the facts of 00:23:20.720 --> 00:23:23.440 her private life. Whoa. She attended the ceremony. 00:23:23.720 --> 00:23:26.759 She delivered her lecture. She stood firm on 00:23:26.759 --> 00:23:29.319 the separation of professional genius and personal 00:23:29.319 --> 00:23:31.619 choices. That radical self -defense is just a... 00:23:31.789 --> 00:23:34.250 cornerstone of her legacy. She remains the only 00:23:34.250 --> 00:23:36.950 person to win Nobel Prizes in two different scientific 00:23:36.950 --> 00:23:39.789 fields. Physics and chemistry achieved in the 00:23:39.789 --> 00:23:42.349 face of scientific skepticism in 1903 and this 00:23:42.349 --> 00:23:45.690 total moralizing frenzy in 1911. So after that 00:23:45.690 --> 00:23:48.990 Nobel triumph, Marie's focus really shifted to 00:23:48.990 --> 00:23:50.950 creating a permanent scientific infrastructure. 00:23:51.349 --> 00:23:54.670 Her long quest for a proper facility culminated 00:23:54.670 --> 00:23:56.950 in the completion of the Radium Institute, the 00:23:56.950 --> 00:24:00.559 Institut du Radium, in Paris in 1914. It was 00:24:00.559 --> 00:24:03.200 a joint initiative of the Pasteur Institute and 00:24:03.200 --> 00:24:05.359 the University of Paris. And even though she'd 00:24:05.359 --> 00:24:07.539 been offered the directorship of a new lab in 00:24:07.539 --> 00:24:10.579 Warsaw in 1912, she chose to focus on the Paris 00:24:10.579 --> 00:24:13.279 Institute, which really cemented France as the 00:24:13.279 --> 00:24:16.240 global epicenter of radioactivity research. But 00:24:16.240 --> 00:24:18.339 the Institute's grand opening was immediately 00:24:18.339 --> 00:24:20.740 interrupted by the outbreak of World War I. And 00:24:20.740 --> 00:24:22.880 this is the period that sees Marie Curie transition 00:24:22.880 --> 00:24:26.400 from an academic researcher into a... a radical 00:24:26.400 --> 00:24:28.640 humanitarian, applying her knowledge directly 00:24:28.640 --> 00:24:31.059 to saving lives on the battlefield. She realized 00:24:31.059 --> 00:24:33.460 instantly that timely, accurate x -rays could 00:24:33.460 --> 00:24:36.000 prevent unnecessary amputations and save countless 00:24:36.000 --> 00:24:38.420 wounded soldiers. The problem was the x -ray 00:24:38.420 --> 00:24:40.759 machines were static. They were housed in distant 00:24:40.759 --> 00:24:43.619 city hospitals. So she recognized this critical 00:24:43.619 --> 00:24:46.690 logistical gap. You can't bring the soldiers 00:24:46.690 --> 00:24:49.089 to the x -rays, so you have to bring the x -rays 00:24:49.089 --> 00:24:52.369 to the front lines. How on earth did she execute 00:24:52.369 --> 00:24:55.089 this massive undertaking, especially as a single 00:24:55.089 --> 00:24:57.269 woman during wartime? She started with a rapid, 00:24:57.289 --> 00:25:00.150 intensive period of self -training. She studied 00:25:00.150 --> 00:25:03.150 radiology, human anatomy to understand fracture 00:25:03.150 --> 00:25:06.009 localization, and critically, she taught herself 00:25:06.009 --> 00:25:08.509 automotive mechanics. She learned to fix cars. 00:25:08.750 --> 00:25:10.529 So she could maintain the vehicle that would 00:25:10.529 --> 00:25:13.500 transport the equipment. She then went out and 00:25:13.500 --> 00:25:15.839 procured x -ray machines, vehicles, generators, 00:25:16.160 --> 00:25:18.839 and developed the famous mobile radiography units, 00:25:19.039 --> 00:25:20.960 which the soldiers affectionately called the 00:25:20.960 --> 00:25:23.819 Petites Curies, the Little Curies. This was a 00:25:23.819 --> 00:25:27.759 colossal, self -directed, wartime project. She 00:25:27.759 --> 00:25:30.220 was acting as the head of logistics, the lead 00:25:30.220 --> 00:25:32.640 physician, and the chief mechanic all at once. 00:25:32.700 --> 00:25:35.579 Exactly. As the director of the Red Cross Radiology 00:25:35.579 --> 00:25:38.059 Service, she established France's first military 00:25:38.059 --> 00:25:41.440 radiology center in late 1914. She personally 00:25:41.440 --> 00:25:43.940 directed the installation of 20 of these mobile 00:25:43.940 --> 00:25:46.599 radiological vehicles and oversaw the setup of 00:25:46.599 --> 00:25:49.579 200 radiological units at field hospitals across 00:25:49.579 --> 00:25:52.380 the front. And her daughter, Irene, was right 00:25:52.380 --> 00:25:54.660 there with her. Yes. Her 17 -year -old daughter 00:25:54.660 --> 00:25:57.660 assisted her in this dangerous work. Marie herself 00:25:57.660 --> 00:26:00.240 was often driving these mobile units, and she 00:26:00.240 --> 00:26:02.180 was training other women as radiological aides. 00:26:02.380 --> 00:26:05.359 She effectively created a whole network of wartime 00:26:05.359 --> 00:26:08.289 medical technologists almost overnight. And beyond 00:26:08.289 --> 00:26:10.390 just X -raying soldiers, she also applied her 00:26:10.390 --> 00:26:13.670 own precious radium supply directly to treatment. 00:26:14.049 --> 00:26:17.410 In 1915, she supervised the production of these 00:26:17.410 --> 00:26:20.329 hollow needles containing radium emanation, which 00:26:20.329 --> 00:26:23.470 we now know is the gas radon, using radium from 00:26:23.470 --> 00:26:26.509 her own supply. These needles were used to sterilize 00:26:26.509 --> 00:26:29.390 and treat infected tissue in hospitals. A remarkable 00:26:29.390 --> 00:26:31.269 act, considering how hard it was to get that 00:26:31.269 --> 00:26:33.410 radium in the first place. This effort was just 00:26:33.410 --> 00:26:36.509 monumental. It's estimated over a million wounded 00:26:36.509 --> 00:26:38.589 soldiers were treated using her X -ray units 00:26:38.589 --> 00:26:41.809 and radium treatments during the war. So when 00:26:41.809 --> 00:26:43.670 we look at the official record, what kind of 00:26:43.670 --> 00:26:45.470 recognition did she get from the French government 00:26:45.470 --> 00:26:47.869 for this immense sacrifice? It's astonishing 00:26:47.869 --> 00:26:51.630 and frustrating. Despite saving countless French 00:26:51.630 --> 00:26:54.490 lives through this massive, self -funded, and 00:26:54.490 --> 00:26:56.890 self -directed war effort, Marie Curie never 00:26:56.890 --> 00:26:59.349 received any formal recognition or honor from 00:26:59.349 --> 00:27:01.190 the French government. Not even the Legion of 00:27:01.190 --> 00:27:03.849 Honor? Nothing. She was so committed she even 00:27:03.849 --> 00:27:06.829 tried to donate her gold Nobel Prize medals to 00:27:06.829 --> 00:27:09.009 the French National Bank to help the war effort. 00:27:09.410 --> 00:27:11.970 They refused to accept them. They refused them? 00:27:12.130 --> 00:27:15.009 Said they had ceremonial value, so she was forced 00:27:15.009 --> 00:27:17.089 to buy war bonds with her prize money instead. 00:27:17.599 --> 00:27:19.720 She just remarked that she had no illusions the 00:27:19.720 --> 00:27:22.200 money would be lost, but the state needs it. 00:27:22.299 --> 00:27:24.720 So after the war, she documents this incredible 00:27:24.720 --> 00:27:28.039 period in her book, Radiology and War, that the 00:27:28.039 --> 00:27:30.259 international community was eager to recognize 00:27:30.259 --> 00:27:33.900 her. Oh, her fame was global. In 1921, she toured 00:27:33.900 --> 00:27:36.220 the United States to raise funds for radium research. 00:27:36.500 --> 00:27:38.779 And a high point of this tour was when President 00:27:38.779 --> 00:27:41.720 Warren G. Harding personally presented her with 00:27:41.720 --> 00:27:44.539 one gram of radium collected in the U .S., a 00:27:44.539 --> 00:27:47.150 priceless gift at the time. And the irony is 00:27:47.150 --> 00:27:49.369 it was this foreign recognition that finally 00:27:49.369 --> 00:27:52.289 shamed the French government into action. Correct. 00:27:52.549 --> 00:27:55.049 Embarrassed by her lack of official French distinction, 00:27:55.390 --> 00:27:57.869 they offered her the Legion of Honor. And she 00:27:57.869 --> 00:28:00.730 refused it. She refused it. Her actions consistently 00:28:00.730 --> 00:28:03.690 prioritize scientific independence and humanitarian 00:28:03.690 --> 00:28:07.059 service over any institutional recognition. And 00:28:07.059 --> 00:28:09.019 she continued to influence global science and 00:28:09.019 --> 00:28:11.240 policy. She became a fellow of the French Academy 00:28:11.240 --> 00:28:13.900 of Medicine. She served alongside Albert Einstein 00:28:13.900 --> 00:28:15.920 on the League of Nations International Committee 00:28:15.920 --> 00:28:18.900 on Intellectual Cooperation. And her second American 00:28:18.900 --> 00:28:22.700 tour in 1929 was dedicated to financing the Warsaw 00:28:22.700 --> 00:28:25.339 Radium Institute, which fulfilled that lifelong 00:28:25.339 --> 00:28:27.559 commitment to her Polish roots. It opened in 00:28:27.559 --> 00:28:30.859 1932, directed by her dedicated sister, Bronisiewa. 00:28:31.059 --> 00:28:33.619 And the scientific legacy continued directly 00:28:33.619 --> 00:28:36.549 through her own family. The Curie Institute she 00:28:36.549 --> 00:28:38.849 founded produced four more Nobel Prize winners, 00:28:39.069 --> 00:28:41.269 including her daughter, Irène Joliot -Curie, 00:28:41.450 --> 00:28:43.710 and her son -in -law, Frédéric Joliot -Curie. 00:28:43.829 --> 00:28:46.710 Her relentless focus created a lasting dynasty 00:28:46.710 --> 00:28:49.869 of atomic science. Marie Curie's commitment to 00:28:49.869 --> 00:28:52.269 science and her sacrifice during the war, well, 00:28:52.430 --> 00:28:55.440 they ultimately cost her her life. She died on 00:28:55.440 --> 00:28:59.660 July 4, 1934, at the age of 66. The cause was 00:28:59.660 --> 00:29:02.079 a plastic anemia, which was universally attributed 00:29:02.079 --> 00:29:05.240 to long -term exposure to ionizing radiation. 00:29:05.720 --> 00:29:07.980 It's the ultimate tragic conclusion to this story 00:29:07.980 --> 00:29:11.220 of scientific heroism. The dangers of ionizing 00:29:11.220 --> 00:29:13.240 radiation were simply unknown during the era 00:29:13.240 --> 00:29:15.700 of her pioneering work. She routinely carried 00:29:15.700 --> 00:29:18.079 radioactive test tubes in her pockets, sometimes 00:29:18.079 --> 00:29:20.039 noting the beautiful faint light they emitted, 00:29:20.180 --> 00:29:22.859 and she stored samples in her desk drawer, treating 00:29:22.859 --> 00:29:24.779 them with a kind of curious fascination rather 00:29:24.779 --> 00:29:27.240 than extreme caution. And the sources suggest 00:29:27.240 --> 00:29:29.799 a specific period of exposure may have been the 00:29:29.799 --> 00:29:33.000 real defining factor in her illness. Yes. When 00:29:33.000 --> 00:29:35.859 her body was exhumed in 1995 to be transferred 00:29:35.859 --> 00:29:38.589 to the Pantheon, Her remains had to be sealed 00:29:38.589 --> 00:29:41.309 in a thick lead lining because of the continuing 00:29:41.309 --> 00:29:44.730 radioactivity. But the medical examination afterwards 00:29:44.730 --> 00:29:47.349 suggested that her illness, the plastic anemia, 00:29:47.549 --> 00:29:50.049 was more likely due to the acute, heavy exposure 00:29:50.049 --> 00:29:52.309 she got from working with unshielded x -ray equipment 00:29:52.309 --> 00:29:55.269 during her World War I efforts. So not the years 00:29:55.269 --> 00:29:58.049 of handling radium in the lab. Less that, and 00:29:58.049 --> 00:30:00.849 more the intense radiography work. The ultimate 00:30:00.849 --> 00:30:04.099 sacrifice. The very effort she undertook to save 00:30:04.099 --> 00:30:06.500 a million soldiers may have been the defining 00:30:06.500 --> 00:30:09.000 factor in her own death. So what does her work 00:30:09.000 --> 00:30:11.220 fundamentally change about our understanding 00:30:11.220 --> 00:30:13.880 of the universe? It laid the absolute foundational 00:30:13.880 --> 00:30:16.740 pillars for modern nuclear physics, for cancer 00:30:16.740 --> 00:30:19.259 radiation treatments, and for medical radiography. 00:30:19.920 --> 00:30:22.039 By providing the first evidence that radiation 00:30:22.039 --> 00:30:24.519 comes from within the atom, she didn't just add 00:30:24.519 --> 00:30:27.119 a new idea. She forced a fundamental paradigm 00:30:27.119 --> 00:30:30.190 shift. Classical physics, which relied on the 00:30:30.190 --> 00:30:32.609 conservation of energy and the idea that atoms 00:30:32.609 --> 00:30:35.069 were immutable, had to completely rewrite its 00:30:35.069 --> 00:30:38.089 rulebook. And her techniques for isolating these 00:30:38.089 --> 00:30:40.470 radioactive isotopes are still fundamental to 00:30:40.470 --> 00:30:43.059 research today. And let's turn to the ethical 00:30:43.059 --> 00:30:45.460 core of her work, something Albert Einstein really 00:30:45.460 --> 00:30:48.200 praised her for. She and Pierre made this profoundly 00:30:48.200 --> 00:30:50.460 moral decision about their discoveries. They 00:30:50.460 --> 00:30:53.940 did. They intentionally and deliberately refrained 00:30:53.940 --> 00:30:56.099 from patenting the radium isolation process. 00:30:56.599 --> 00:30:59.380 Their reasoning was simple and uncompromising. 00:30:59.769 --> 00:31:01.789 They believe the scientific community should 00:31:01.789 --> 00:31:03.950 be able to conduct research unhindered by commercial 00:31:03.950 --> 00:31:06.990 interests or profit motives. A powerful statement, 00:31:07.069 --> 00:31:09.450 especially in an era when massive fortunes were 00:31:09.450 --> 00:31:11.450 being built around new scientific discoveries. 00:31:11.950 --> 00:31:14.390 Absolutely. Marie maintained that ethical stance 00:31:14.390 --> 00:31:16.930 her whole life. She was known for her profound 00:31:16.930 --> 00:31:19.730 honesty and modest lifestyle, often directing 00:31:19.730 --> 00:31:21.769 prize money and gifts straight to the institutions 00:31:21.769 --> 00:31:24.069 she worked for or to her family and students. 00:31:24.309 --> 00:31:26.869 This lack of personal greed is what led Einstein 00:31:26.869 --> 00:31:28.930 to reportedly say that she was the only famous 00:31:28.930 --> 00:31:31.369 person he knew who could not be corrupted by 00:31:31.369 --> 00:31:34.390 fame. Her global status and her enduring presence 00:31:34.390 --> 00:31:37.549 are just remarkable. She became the first woman 00:31:37.549 --> 00:31:40.009 interred on her own merits in the Paris Pantheon 00:31:40.009 --> 00:31:43.700 in 1995. And the honors are legion. The element 00:31:43.700 --> 00:31:47.200 curium, atomic number 96, the unit of radioactivity, 00:31:47.279 --> 00:31:50.319 the curie. Three radioactive minerals are named 00:31:50.319 --> 00:31:52.900 after the Curies. She's been immortalized on 00:31:52.900 --> 00:31:56.319 currency. Her legacy is just one of pure, unadulterated 00:31:56.319 --> 00:31:59.000 scientific and moral courage. So this deep dive 00:31:59.000 --> 00:32:01.339 reveals that Marie Curie's life was this astonishing 00:32:01.339 --> 00:32:04.220 tapestry of scientific genius interwoven with 00:32:04.220 --> 00:32:06.359 intense social and institutional resistance. 00:32:06.819 --> 00:32:09.450 The double laureate. the groundbreaker in atomic 00:32:09.450 --> 00:32:11.809 theory, the mother of modern cancer treatment, 00:32:11.950 --> 00:32:15.049 and a radical wartime humanitarian. And I think 00:32:15.049 --> 00:32:17.009 what we uncover most clearly is the depth of 00:32:17.009 --> 00:32:18.769 her struggle against that systemic resistance. 00:32:19.069 --> 00:32:22.130 She faced down partitioning empires, crippling 00:32:22.130 --> 00:32:24.569 poverty, blatant academic sexism in two different 00:32:24.569 --> 00:32:27.150 countries, and vicious xenophobia from the French 00:32:27.150 --> 00:32:29.230 press. Her life really serves as this powerful 00:32:29.230 --> 00:32:31.730 historical model. It demonstrates that the greatest 00:32:31.730 --> 00:32:34.349 discoveries often require immense personal sacrifice 00:32:34.349 --> 00:32:37.430 and a radical to science refusal to conform to 00:32:37.430 --> 00:32:39.690 established norms, both scientific and social. 00:32:40.170 --> 00:32:43.390 It is an unparalleled story of achievement, fueled 00:32:43.390 --> 00:32:46.130 by sheer, unstoppable intellectual willpower. 00:32:46.589 --> 00:32:49.089 But there is a final physical detail from our 00:32:49.089 --> 00:32:52.150 sources that connects her legacy directly to 00:32:52.150 --> 00:32:55.829 us today. It ties that dangerous pioneering work 00:32:55.829 --> 00:32:59.130 right into the material present. This is an amazing 00:32:59.130 --> 00:33:01.670 detail. It really is. Marie Curie's dedication 00:33:01.670 --> 00:33:04.269 to knowledge is so complete that it literally 00:33:04.269 --> 00:33:07.849 transcends her death. Her papers from the 1890s, 00:33:07.869 --> 00:33:10.289 the ones detailing the isolation of polonium 00:33:10.289 --> 00:33:12.769 and radium, and even her cookbooks and personal 00:33:12.769 --> 00:33:15.230 effects, are still highly radioactive today. 00:33:15.430 --> 00:33:17.829 So radioactive that they have to be kept in lead 00:33:17.829 --> 00:33:20.869 -lined boxes. And to consult them, to physically 00:33:20.869 --> 00:33:22.869 touch the remnants of her scientific genius, 00:33:23.130 --> 00:33:25.130 you have to wear protective clothing and sign 00:33:25.130 --> 00:33:27.990 a waiver over a century later. So we leave you 00:33:27.990 --> 00:33:30.539 with this thought. What does it mean for a scientist's 00:33:30.539 --> 00:33:33.359 work to literally defy decay, forcing future 00:33:33.359 --> 00:33:35.460 generations to handle the physical remnants of 00:33:35.460 --> 00:33:38.160 her genius with danger and with respect? That 00:33:38.160 --> 00:33:41.140 permanent toxic imprint is the ultimate measure 00:33:41.140 --> 00:33:43.660 of her profound and enduring impact on our world. 00:33:43.759 --> 00:33:46.240 A truly immortal radioactive legacy. Thank you 00:33:46.240 --> 00:33:47.380 for joining us on this deep dive.