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Science History Institute

@sciencehistory.org
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Sharing the stories of science! 🧬 🔬 Follow us on Facebook & Instagram @scihistoryorg

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Science History Institute @sciencehistory.org · 29/09/2026
In 1908, John L. Leal and George Warren Fuller spent 99 days secretly testing chlorine in Jersey City’s water supply—an experiment that changed public health forever. But what if it hadn’t worked? And how did people react when they found out? Hear the latest episode of Distillations podcast now ⬇️
sciencehistory.org
Jersey City’s Secret Water Experiment
How did a covert chemical treatment permanently change our drinking water?
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Jennifer Weeks @jenniferweeks83.bsky.social · 25/09/2026
#Aviation contributes roughly as much to #climatechange as plastics production, shipping, or the nation of Brazil. There's work ongoing to make flight greener, but your packages will probably fly carbon-free before you do -- my latest article for Distillations Magazine explains why. 🌎🧪
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Robin Mohr @robinmsf.bsky.social · 24/09/2026
This has been an extraordinary week for me. Today I got a brief but private tour of the @sciencehistory.org library and museum. Including this book by #Quaker #scientist John Dalton, who came up with a modern theory of the atom in 1808. #amazing
Early diagrams of atoms in an old bookProspectus for a new book on chemical philosophy Handwritten letter from the author, John Dalton, to prospective buyer/seller of his book
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Science History Institute @sciencehistory.org · 25/09/2026
The question of how to best power planes is as old as aviation itself, and a surprising number of schemes have been tried over the past century. But as the Earth warms and oil prices soar, calls for a more sustainable approach to aviation have grown. ⁠ ⁠ Is such a thing even possible?⁠
sciencehistory.org
Delayed Arrival
Can sustainable air travel get off the ground?
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Science History Institute @sciencehistory.org · 10/09/2026
Travel back to the time of Uranium Mania...⁠when beauty queens won piles of ore and prospectors combed the West for a Mesa miracle.⁠ Dig into latest Distillations story written by Philadelphia-based freelance journalist, Ben Seal. ⁠ ☢️ www.sciencehistory.org/stories/maga...
sciencehistory.org
Uranium Mania
The post-World War II mining rush that transformed a region.
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Science History Institute @sciencehistory.org · 27/08/2026
The mirror changed how we see ourselves. Now it’s changing our relationship with the rest of the animal kingdom. Read the latest Distillations story by Andrea Teagle, a freelance science writer and adventure seeker based in Cape Town, South Africa.⁠ www.sciencehistory.org/stories/maga...
sciencehistory.org
Extended Family
The mirror changed how we see ourselves. Now it's changing our relationship with the rest of the animal kingdom.
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Beckman Foundation @beckman-foundation.bsky.social · 24/08/2026
ALSO, if you’re in the Philly area, be sure to register for the launch event of a new Distillations podcast season, American Vice, which @sciencehistory.org is hosting on 10/29: www.sciencehistory.org/visit/events...
sciencehistory.org
Study Hall x Distillations: American Vice
Come celebrate our newest Distillations podcast season with a special performance by the Crossroads Comedy Theater Company!
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Princeton University Press @princetonupress.bsky.social · 19/08/2026
Tomorrow, August 20th at 6:00 pm EDT, see Roland Betancourt, author of Disneyland and the Rise of Automation, at @sciencehistory.org! He'll be discussing the surprising origins of and secrets behind your favorite rides. Register for this free, hybrid event here: buff.ly/xXvbCNQ
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Science History Institute @sciencehistory.org · 22/07/2026
The Castle Bravo nuclear test marked a new chapter in the Cold War. But for the crew of a Japanese fishing vessel, the impact proved fatal. Their story introduced the world to "fallout" and reshaped conversations about nuclear weapons and their human cost. Read the latest from Distillations ⬇️
sciencehistory.org
Atomic Tuna
An ill-fated fishing voyage pulls back the curtain on U.S. nuclear testing in the Pacific.
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Science History Institute @sciencehistory.org · 13/07/2026
From ancient “firecrackers” to July 4th displays, fireworks always bring us together. Next Friday, 7/17, join us for a free screening of Passfire – a 2016 documentary on the global story of fireworks – with an introduction by the director and a post-film Q&A session. Register for free online! ⬇️
sciencehistory.org
Film Screening: Passfire
This original documentary by Veverka Bros. explores the world's most spectacular pyrotechnics, the artisans who create them, and the rich cultural traditions they represent.
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Science History Institute @sciencehistory.org · 08/07/2026
In July 1976, as Philadelphia celebrated the U.S. bicentennial, a deadly outbreak left 34 people dead and baffled investigators. Fifty years later, with new Legionnaires' disease cases making headlines, Sarah Everts revisits the 1976 outbreak and the race to identify its cause. #DistillationsMag
sciencehistory.org
The Philly Killer at 50
Legionnaires’ disease is more prevalent than ever. So how did we forget it?
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Ben Gross @bhgross144.bsky.social · 01/07/2026
Happy 100th birthday to the Ben Franklin Bridge! One of my favorite #Philly memories was walking across it w/a group of @sciencehistory.org fellows en route to a Camden Riversharks game. (1926 aerial photo HT @hagleycenter.bsky.social: digital.hagley.org/1970200_0154...) #Philadelphia #histSTM 🗃️📜
Benjamin Franklin Bridge (J. Victor Dallin Aerial Survey collection (Accession 1970.200)). 1926-07-10. 1970200_01546. Audiovisual Collections, Hagley Museum and Library, Wilmington, DE 19807. Accessed 2026-07-01; https://digital.hagley.org/1970200_01546.
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Science History Institute @sciencehistory.org · 25/06/2026
Forensic ecology—using pollen, leaves, and other plant-based evidence in criminal investigations—is a common feature of cop shows and true-crime podcasts. In reality, it's a powerful, but rarely used skill. Why is that? ⁠ Journalist Ute Eberle investigates.⁠ ⁠ www.sciencehistory.org/stories/maga...
sciencehistory.org
Floral Arraignment
Plants can be a potent crime-solving tools. So why are they used so rarely? Discover the history of forensic ecology.
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Charlotte Abney @abney.bsky.social · 27/05/2026
Registration is now open for our summer symposium, “The Global History of Modern Science, 1400-1914” Join us at @sciencehistory.org in Philadelphia on August 6 & 7 to discuss how modern science has been shaped through global cultural exchange! www.sciencehistory.org/cainconference
sciencehistory.org
The Global History of Modern Science, 1400–1914
The 2026 Cain Conference will address the major issues involved in understanding how modern science has been created through a process of global cultural exchange.
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Julian R. Silverman @manhattanscientist.bsky.social · 15/05/2026
Looking forward to talking about soap and alchemy today at @sciencehistory.org for Alumni Day. Giving a flask talk about how the Philosopher’s Stone might be sitting by your kitchen sink. Can’t wait to meet the other Fellows (and new collections). books.rsc.org/books/monogr...
Title slide for a talk comparing the philosophers stone and soap. An image of red realgar mineral next to the soap emoji. At right am illustration of Michael faraday in the laboratory
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Science History Institute @sciencehistory.org · 05/05/2026
Sandalwood has been prized for millennia, but empire, industry, and scarcity turned it into an illicit commodity. In this #Distillations story, former fellow Nikhil Dharan traces how sandalwood smuggling became a crime at the intersection of resources, politics, law, and industry. Read it here ⬇️
sciencehistory.org
The Soapy Origins of a Sandalwood Smuggler
A war between police and a notorious outlaw riveted South India for more than a decade. At the conflict’s roots was a centuries-old saga of scarcity and control.
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Science History Institute @sciencehistory.org · 06/04/2026
📚️ #NationalLibraryWeek is quickly approaching! Celebrate with us on April 22, as we host our annual Othmer Library After Hours. See rare and modern treasures, support the library by adopting a collection item, enjoy our annual book-themed cake, and take home a souvenir!⁠ 🎟️ Register for FREE ⬇️
sciencehistory.org
Othmer Library After Hours
Join us for our annual library open house in honor of National Library Week!
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Science History Institute @sciencehistory.org · 24/03/2026
Can oats be controversial? Can porridge be political? Or dangerous? Do the choices in the grains you eat betray your character? Yes, and they have for millennia. ⁠ ⁠ Read the latest story from #Distillations magazine, Fitter for a Stable Than a Table, written by @helenaaeberli.bsky.social ⬇️
sciencehistory.org
Fitter for a Stable Than a Table
A potted history of porridge.
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Billy Penn at WHYY @billy-penn.bsky.social · 19/03/2026
A festival in Old City on Saturday will commemorate the creation of the matchbook in 1892 by Philly attorney Joshua Pusey. “He was a big cigar smoker, and he was really frustrated with existing match technology,” said Jesse Smith, museum director @sciencehistory.org. billypenn.com/2026/03/18/m...
billypenn.com
Philly's America250 celebrations honor local cigar smoker who invented matchbooks
A festival in Old City on Saturday remembers Joshua Pusey’s historic innovation with storytelling and family activities.
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Ben Gross @bhgross144.bsky.social · 16/03/2026
"We're Going to Work Miracles" Read Edward Teller's 1960 essay on Project Plowshare on @archive.org: archive.org/details/Popu... (Or read this blog post by @sciencehistory.org's Patrick Shea: www.sciencehistory.org/stories/maga...) #histSTM #histsci #ColdWAr
Edward Teller, "father of the hydrogen bomb," is confident that the atom's power "is ready to unlock a treasure chest of arctic oil, dig open an Alaskan harbor, open the spigot for Colorado's shale..." and much more!

Popular Mechanics
March 1960
Scan courtesy of Internet Archive
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Science History Institute @sciencehistory.org · 10/03/2026
Join us on Thursday, 3/19, for a free, thought-provoking talk with Sarah S. Richardson as she explores the hidden history of beliefs about pregnancy and children’s health. 🟣 Register here: www.sciencehistory.org/maternalimprint
sciencehistory.org
The Maternal Imprint
This Women's History Month, join us for a thought provoking presentation by leading gender and science scholar Sarah S. Richardson.
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Science History Institute @sciencehistory.org · 04/03/2026
This #WomensHistoryMonth, explore powerful historic images and stories of women in science in our digital collections. From labs to fieldwork, women's contributions to science and history have sparked innovation, challenged assumptions, and opened doors for future generations. ⬇️ rb.gy/v7ytpj
Photo of woman using a Beckman Microlab 252MX Computing Infrared Spectrophotometer
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Science History Institute @sciencehistory.org · 09/02/2026
🧨 An explosive new exhibition is coming to Old City! Opening April 10, 💥 Flash! Bang! Boom! A History of Fireworks explores the chemistry, craft, and global stories behind dazzling displays. Join us for a FREE opening celebration on, April 10, 5–8pm. Visit sciencehistory.org/fireworks for more info!
sciencehistory.org
Flash! Bang! Boom! A History of Fireworks
Opening April 10, 2026, this exhibition celebrates the 250th anniversary of the signing of the Declaration of Independence.
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PhillyVoice.com @phillyvoice.com · 21/01/2026
Science History Institute will open "Flash! Bang! Boom!" this spring with rare books, art and the chemistry behind pyrotechnics. 🔗 Read more: bit.ly/3NCwgdZ
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Dr. Jessica M. DeWitt @jessicamdewitt.bsky.social · 17/01/2026
This month I feature @roguechieftan.bsky.social, @sciencehistory.org, @thewalrus.ca, @whitehorsepress.bsky.social, @carsoncenter.bsky.social, @sarahjaquetteray.bsky.social, @edgeeffectsmag.bsky.social, and more! #envhist
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Science History Institute @sciencehistory.org · 15/01/2026
Long before railroads stitched continents together, mules and their Afro-Indigenous arrieros moved silver, sugar, cotton, and environmental knowledge across borders. In Distillations, @roguechieftan.bsky.social traces the mule as a tool of empire and a symbol of Black and Indigenous resistance. ⬇️
sciencehistory.org
Mule Power
Unpacking empires and diaspora in Mexico and the United States.
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Science History Institute @sciencehistory.org · 08/01/2026
🪲 Cochineal, tiny insects that live on prickly pear cacti, powered a global red dye trade and transformed European fashion. The Spanish Crown built a monopoly for control of its production, but Tlaxcalteca growers weren't giving in without a fight. Read more in our latest Distillations story. ⬇️
sciencehistory.org
Red the World Over
How a tiny cactus parasite called cochineal became one of the Spanish Empire’s most lucrative commodities.
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Science History Institute @sciencehistory.org · 05/01/2026
Today, we honor George Washington Carver, whose pioneering research in crop rotation and sustainable farming transformed American agriculture and helped shape modern environmental science. 🥜 🌱 Shown here: Philatelic First Day Cover honoring Carver, issued on January 5, 1948.
digital.sciencehistory.org
First Day Cover honoring George Washington Carver
Philatelic First Day Cover honoring American agricultural scientist and inventor George Washington Carver (1864?-1943). The envelope features an illustrated rendering of Carver and the Tuskegee Instit...
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Luis Moreno Martínez @luismormz.bsky.social · 05/01/2026
En estos días en los que el juego y la infancia cobran especial protagonismo, cabe recordar esta fantástica exposición virtual del @sciencehistory.org sobre la historia de los sets de química para niños y niñas: artsandculture.google.com/story/scienc...
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Charlotte Abney @abney.bsky.social · 19/12/2025
Applications for 2026-27 fellowships at @sciencehistory.org are still open until Jan 15, with recommendations due Jan 31! ⏰📚 Could your research benefit from time in our archives, rare books, instruments, and other collections? Find info about our fellowships and our guide for applicants here!
sciencehistory.org
Science History Institute Fellowships
The Institute is home to the largest private fellowship program in the historical study of science, medicine, and technology in the United States.
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Science History Institute @sciencehistory.org · 16/12/2025
In Ecuador’s Los Cedros cloud forest, activists used the country’s constitutional “rights of nature” law to stop mining. A landmark 2021 ruling protected the forest—but the fight isn’t over. Read the latest #Distillations story from @scribblingsam.bsky.social here ⬇️
sciencehistory.org
Good Living
Does nature have rights? In 2008, Ecuador said yes. Doing so forced a reckoning with the country’s mining past.
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Ben Gross @bhgross144.bsky.social · 23/11/2025
Henry Moseley, the English physicist whose X-ray spectroscopy experiments led to a reorganization of the #PeriodicTable, was born #OnThisDay in 1887. He later died in the Battle of Gallipoli. More via @sciencehistory.org: www.sciencehistory.org/stories/maga... #histSTM #physics #chemistry #WWI 🗃️📜
Henry Moseley in the Balliol-Trinity College Laboratories, soon after his graduation. (https://en.wikipedia.org/wiki/Henry_Moseley#/media/File:BigMoseleyCard.jpg)
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samkean.bsky.social @samkean.bsky.social · 03/12/2025
In the 1970s, paramedic units were illegal in the United States. One (very bad) television show, Emergency!, set out to change that—and saved tens of thousands of lives in the process. Episode below! podcasts.apple.com/us/podcast/t... @sciencehistory.org sciencehistory.org/stories/disa...
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Science History Institute @sciencehistory.org · 18/11/2025
A 1700s book on color experiments reveals a vibrant magenta stain, likely from cochineal dye. Modern dyers confirm cochineal-alum makes a similar magenta. Read our latest Collections Blog post, as this stain tells the story of how New World ingredients transformed Old World dyes. ⬇️
sciencehistory.org
A Stain Worth a Thousand Words
New World ingredients in Old World dyes.
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Ben Gross @bhgross144.bsky.social · 14/11/2025
Judith Kaplan's case study focuses on Science in American Life, an exhibit that opened in 1994 at the National Museum of American History. As she notes, the exhibit's stakeholders (e.g., curators, donors, the public) had different goals--commemoration, historical educ., sci. literacy, etc. #HSS2025
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Ben Gross @bhgross144.bsky.social · 14/11/2025
Smith uses @sciencehistory.org's upcoming exhibit on fireworks (Flash! Bang! Boom!) to highlight many themes familiar to historians of science (e.g., links b/w military & civilian tech; advances in mat. sci & mfg., the creation of safety standards) www.sciencehistory.org/visit/exhibi... #HSS2025 🎆
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samkean.bsky.social @samkean.bsky.social · 12/11/2025
He was a brilliant ornithologist—and a spy so colorful that James Bond was based on him. Richard Meinertzhagen was also a liar and a thief, and perpetrated the biggest fraud in biology history. Episode below! podcasts.apple.com/us/podcast/t... @sciencehistory.org sciencehistory.org/stories/disa...
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leoclchu.bsky.social @leoclchu.bsky.social · 11/11/2025
Glad to publish with @shacorg.bsky.social on the Chinese American Chemical Society and science diplomacy in the 1970s-80s Very grateful for the generous financial & research support of @sciencehistory.org www.tandfonline.com/doi/full/10....
tandfonline.com
“To Be Mindful of Their Sensitivities:” The Chinese American Chemical Society and the Scientific Diaspora
This paper investigates the Chinese American Chemical Society (CACS) as an organisation of the scientific diaspora at the end of the Cold War. Established in 1981 by mostly first-generation immigra...
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Science History Institute @sciencehistory.org · 11/11/2025
In the latest Distillations Magazine story, find out how a shady car battery additive called AD‑X2 sparked a showdown between the U.S. political and scientific establishments. @samkean.bsky.social ⬇️ www.sciencehistory.org/stories/maga...
sciencehistory.org
Politically Charged
How a shady car battery additive called AD-X2 sparked a showdown between the U.S. country’s political and scientific establishments.
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Ben Gross @bhgross144.bsky.social · 06/11/2025
Rectangle pizza gets a bad wrap, but it did win @sciencehistory.org's School Lunch Bracket! (This contest was held in connection w/the Institute's exhibit, Lunchtime: The History of Science on the School Food Tray, open until Jan. 2026 www.sciencehistory.org/visit/exhibi...) #histSTM #FoodHistory 🗃️
A March Madness-style bracket of school lunch favorites, including:
-Rectangle Pizza
-Mexican Pizza
-Chicken Nuggets
-Chicken Patty
-Mashed Potatoes & Gravy
-Tater Tots & Cheese
-French Toast Sticks
-Hash Browns
-Hot Dogs
-Burger
-Philly Cheesesteak
-Ham & Cheese Hoagie
-Enchiladas
-Nachos (in a Dorito Bag)
-Srawberry Crunch Ice Cream Bar
-Tastykake Chocolate Cupcake

(The presence of hoagies and Tastykakes betrays the Philadelphian origins of this bracket...)

Source:  https://x.com/SciHistoryOrg/status/1841842793737490448/photo/1
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samkean.bsky.social @samkean.bsky.social · 05/11/2025
Taxonomy has an ugly history of naming species after despicable people—even Adolf Hitler. But taxonomists have resisted most efforts to change such names, for reasons both good and bad. Episode below! podcasts.apple.com/us/podcast/t... @sciencehistory.org sciencehistory.org/stories/disa...
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Science History Institute @sciencehistory.org · 31/10/2025
The Othmer Library is celebrating #Halloween 🎃! When our electric pencil sharpener broke, staff replaced it with a Mitsubishi KH-20 manual sharpener, which became a hit! Jahna Auerbach, our digital collections librarian, dressed up as the sharpener for Halloween, and the results are fantastic!
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samkean.bsky.social @samkean.bsky.social · 29/10/2025
The eagle that made John James Audubon famous—the Bird of Washington—was a fraud. In fact, historians now know that much of Audubon’s legendary life was built on lies. Episode below! podcasts.apple.com/us/podcast/t... @sciencehistory.org sciencehistory.org/stories/disa...
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Michael Robinson @explorationblog.bsky.social · 27/10/2025
Claire Sabel discusses the gem trade in SE Asia & the way it was impacted by European traders 17-18c @uchicagopress.bsky.social @scarcerc.bsky.social @harunkucuk.bsky.social @univie.ac.at @nhmwien.bsky.social @sciencehistory.org @historyscience.bsky.social timetoeatthedogs.com/2025/10/27/g...
timetoeatthedogs.com
Gems, Science, and Empire
17th century traders who traveled the sea routes between India and Southeast Asia were interested in spices, but they were also interested in gemstones, objects of desire, commercial value, and inc…
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jayson m porter @roguechieftan.bsky.social · 16/10/2025
Check out my new environmental history of diaspora and empire through mules with @sciencehistory.org www.sciencehistory.org/stories/maga...
sciencehistory.org
Mule Power
Unpacking empires and diaspora in Mexico and the United States.
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Charlotte Abney @abney.bsky.social · 17/10/2025
Absolutely delighted to announce that applications are now open for our 26-27 postdoc, dissertation, distinguished, and short-term fellowships at @sciencehistory.org! 📚 🎉 Details and application info on our website; questions welcome here! www.sciencehistory.org/about/news/a...
sciencehistory.org
Applications for 2026–2027 Beckman Center Fellowships Now Open
Researchers can apply by January 15 for various long- and short-term programs, including two-year curatorial fellowships.
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samkean.bsky.social @samkean.bsky.social · 15/10/2025
The Ig Nobel Prizes honor bizarre research that makes you laugh, then think—like this levitating frog. Some scientists despise them. But they benefit science in surprising ways. Episode below! podcasts.apple.com/us/podcast/t... @scihistoryorg sciencehistory.org/stories/disa...
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samkean.bsky.social @samkean.bsky.social · 07/10/2025
It's Nobel Prize week. Winning a Nobel is good—mostly. But laureates often go kooky and promote bizarre things like ESP, AIDS denialism, and worse. Psychologists now understand why. New podcast season starts today! podcasts.apple.com/us/podcast/t... @scihistoryorg sciencehistory.org/stories/disa...
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Science History Institute @sciencehistory.org · 24/09/2025
Older than most trees and survivors of 5 mass extinctions, horseshoe crabs now face threats from humans. While blue blood has been used to test medicine for decades, will new tech finally set them free? Find out more in our latest Distillations story, written by @jenniferweeks83.bsky.social ⬇️
sciencehistory.org
Something Old, Something New
Humans owe a huge medical debt to horseshoe crabs. Now there’s an opportunity to pay it back.
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Science Magazine @science.org · 16/09/2025
A storied trove of documents, photos, and lab tools from the race to decipher DNA’s structure and function is finally being made public. scim.ag/47GNqze
scim.ag
After bizarre journey, prized history of molecular biology archive finds new home
Science History Institute makes public multimillion-dollar collection, including Rosalind Franklin’s famous DNA image, assembled by fake scientist
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