Natural Philosophy
Engraving of the alchemical universe 1618

Atlas Obscura: How Scholars Cracked a Medieval Alchemist’s Secret Code
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Engraving of a woman making paper

Chasing the Clues in Isaac Newton’s Manuscripts

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Alchemical emblem

The Conversation: Deciphering the Philosophers’ Stone
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Philly Materials Day Online: Experiments for Home
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Photo of an old manuscript

The Newton Mess

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Science history photo collage

Love, Hate, and Sex from the History of Science

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Photo illustration of woman with migraine

Sex(ism), Drugs, and Migraines

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Letter written by 17th-century scientist Lady Ranelagh

The Almost Forgotten Story of Katherine Jones, Lady Ranelagh

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The Philosopher’s Quest

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Mark Waddell

People
Hiro Hirai

Hiro Hirai

People

Bruce Moran

People

Rare Books
Collections
James R. Voelkel headshot

James R. Voelkel

People
Lavoisier. Engraved by François Séraphin Delpech, after a drawing by Belliart, after the painting by Jacques Louis David.

Antoine-Laurent Lavoisier
Historical Profile

Joseph Priestley
Historical Profile

John Dalton
Historical Profile

The Whole of Nature and the Mirror of Art
Museum

Transmutations: Alchemy in Art
Museum
Making a homunculus from an 1899 edition of Goethe's Faust

Man Made: A History of Synthetic Life

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17th-century scientists in the lab

Science and the Supernatural in the 17th Century

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Francesco Redi

True Science, Fake History

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Painting: An Alchemist’s Laboratory

Gold, Secrecy, and Prestige

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Recipes and Extracts on Alchemy, Medicine, Metal-Working, Cosmetics, Veterinary Science, Agriculture, Wine-Making, and Other Subjects

The Philosophers’ Stove

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The New Science board game

New Science, Old Tricks

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The Alchemical Quest

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Query 31 in Opticks

Last Words

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Novum Organum

Roads to Revolution

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Engraving of Robert Boyle, by John Faber Jr.

The Natural History of Robert Boyle

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Alchemy

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Detail of frontispiece from The Herball or Generall Historie of Plantes

London Calling

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Woodcut of Abu Mūsā Jābir ibn Hayyān

A Revolution in the Scientific Revolution

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Paracelsus Portrait

Paracelsus, Healer of the German Reformation

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Ibn Butlan’s Risalat da`wat al-atibba

Al-Kimiya: Notes on Arabic Alchemy

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