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The History of Chemistry

The History of Chemistry

Steve Cohen

Chemistry is everywhere, and involves everything. But how did chemistry get to be what it is? I'm Steve Cohen, a chemist and writer, bringing you The History of Chemistry. This podcast explores the development of chemistry from prehistoric times to the present, including the people and societies who made chemistry what it is today. The History of Chemistry is for you, whether you hated chemistry in high school, or got a PhD in inorganic chemistry. We'll explore how chemistry affected art, music, language, politics and vice-versa. Whether it's ancient Greek philosophers, medieval alchemists, or modern laboratory apparatus, it's all here. Don't forget to support my series at https://www.patreon.com/thehistoryofchemistry !
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Top 10 The History of Chemistry Episodes

Goodpods has curated a list of the 10 best The History of Chemistry episodes, ranked by the number of listens and likes each episode have garnered from our listeners. If you are listening to The History of Chemistry for the first time, there's no better place to start than with one of these standout episodes. If you are a fan of the show, vote for your favorite The History of Chemistry episode by adding your comments to the episode page.

The History of Chemistry - 52: Making It

52: Making It

The History of Chemistry

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02/05/23 • 19 min

We look at the progress organic chemist Robert Woodward achieved in the 20th century in organic synthesis, that is, creating from scratch all sorts of natural products. His first success was during World War II in synthesizing quinine. Then he was able to create strychnine, cholesterol, cortisone, lysergic acid, reserpine, chlorophyll, cephalosporin, and colchicine. These syntheses took a dozen to two dozen separate chemical reactions. His pinnacle of synthesis was the 1972 co-creation of Vitamin B12. We look at one of the most important mid-20th-century theoretical results of his work: the Woodward-Hoffman rules, co-invented with Holocaust survivor Roald Hoffman. Patreon supporters can download a supplemental sheet to show some diagrams of these molecules.

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The History of Chemistry - 92: Infinite Loop

92: Infinite Loop

The History of Chemistry

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10/29/23 • 22 min

Recycling became common in the 1980s, and we learn why. We also learn of the seven different types of plastic in the recycling world, why they need to be sorted by type for recycling, and how (and even if) they can be recycled.

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The History of Chemistry - 141: Chemical Communications

141: Chemical Communications

The History of Chemistry

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10/06/24 • 36 min

In this episode, I have a conversation with Professor David Perlmutter in the Communications Department at Texas Tech University, on the public's impressions of chemistry, and what value chemistry brings to the wider world.

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The History of Chemistry - 43: Elemental Masters

43: Elemental Masters

The History of Chemistry

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12/13/22 • 26 min

Here we learn about how scientists in the early 20th Century gradually became able to create isotopes, convert transmute elements from one to another, and eventually the invention of new, artificial isotopes not found in nature, such as phosphorus-31. We hear of tritium and carbon-14. Then we get to George Hevesy and his idea of radioactive tracing, including a prank he pulled on his landlady. Finally we get to scientists filling in the last gaps (unknown, undiscovered elements) up to uranium on the periodic table by the mid-1940s.

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The History of Chemistry - 40: Chain Gang

40: Chain Gang

The History of Chemistry

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11/25/22 • 25 min

In this episode, we look at the rise of the Age of Plastics, with polymers from the 1920s and 1930s. We start with urea-formaldehyde resin from 1919, but before the true nature of polymers was clarified. We hear of Hermann Staudinger, who promoted the idea of macromolecules in the 1920s against significant resistance from European chemists. Thé Svedberg's ultracentrifuge gave credence to macromolecules. The rise of DuPont in the 1920s gave us the work of Wallace Carothers and his polymer group, which invented neoprene rubber, polyamide, the first polyester, and ultimately nylon. We learn of the simultaneous work by murderous firm I.G. Farben on synthetic rubbers to free Germany from dependence on latex: Buna, Buna-S, and Buna-N. We learn about hydrogen bonding, a discovery by an undergraduate, Maurice Huggins.
Patreon subscribers have access to a supplemental sheet with molecular structures.

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The History of Chemistry - 37: Come to the Lab

37: Come to the Lab

The History of Chemistry

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11/07/22 • 23 min

We take a break from chemical observations and theory, and switch to practice. That is, we learn about the origins of the chemical laboratory in the Renaissance, and track its development up through the early 20th century. We see the switch from furnaces to gas lines for individual heating apparatuses. We see the start of ventilation, and the differentiation of experimental, lecture, and teaching laboratories. Gradually plumbing enters laboratories, and the arrangement of tables and benches becomes standardized. Laboratories even filter down into governmental school settings.

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The History of Chemistry - 36: An Oily Character

36: An Oily Character

The History of Chemistry

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11/01/22 • 25 min

Here we talk a bit about the history of petroleum from ancient days to modernity. Among the moderns we hear of are Abraham Gesner, promoter of kerosene; Samuel Kier, huckster, canal-boat owner, and refiner; and Edwin Drake's well that ushered in the modern oil industry. We discuss fractional distillation of petroleum to isolate the various components, octane rating for fuels, and various international terms for "gasoline". Finally, we learn of hydrocarbons as lubricants, and I bring in Elliott Greenfield, Senior Engineer at Greenfield Manufacturing, to discuss physical properties of hydrocarbons.

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The History of Chemistry - 35: Au Pair

35: Au Pair

The History of Chemistry

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10/26/22 • 24 min

We learn of the various quantum numbers that describe the size and shape of the energy levels that electrons have inside atoms. Then Louis de Broglie proposes that, just as light has particle characteristics, matter (including electrons) have wave characteristics, which Davisson, Germer, and Thomson show is true. From this, we find that electron waves can fit around atoms only in certain energies. Heitler and London model the smallest molecule, dihydrogen, using quantum-mechanical principles. Linus Pauling takes some general ideas from quantum mechanics, and applies them to chemical bonding.

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The History of Chemistry - 31: What's Inside

31: What's Inside

The History of Chemistry

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10/03/22 • 26 min

Ernest Rutherford discovered the basic structure of the atom. Then Max von Laue suggested diffracting x rays through crystalline layers and showed that atoms have a particular arrangement in crystals. Henry Moseley found a relationship between scattered x rays off elements and the positive charge in their nucleus, thus explaining the Periodic Table. Then Max Plank upended science with his "quantum theory". Niels Bohr used quantum theory to posit electron levels in atoms.

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The History of Chemistry - 101: Totally Tubular

101: Totally Tubular

The History of Chemistry

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12/31/23 • 22 min

We examine the history of carbon nanotubes, starting with Sumio Iijima in 1990. Or maybe Howard Tennett. Or maybe A.M. Nesterenko, N.F. Kolesnik, Yu.S. Akhmatov, V.I. Suhomlin, and O.V. Prilutskii, or maybe John Abrahamson, Peter Wiles, and Brian Rhoades. Or maybe others. Whoever it was, we then look at what mechanical, electrical, and optical properties are so interesting about nanotubes, then some practical applications for them.

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FAQ

How many episodes does The History of Chemistry have?

The History of Chemistry currently has 172 episodes available.

What topics does The History of Chemistry cover?

The podcast is about Alchemy, History, Chemistry, Podcasts, Science and Philosophy.

What is the most popular episode on The History of Chemistry?

The episode title '42: The Shape of You' is the most popular.

What is the average episode length on The History of Chemistry?

The average episode length on The History of Chemistry is 23 minutes.

How often are episodes of The History of Chemistry released?

Episodes of The History of Chemistry are typically released every 6 days, 20 hours.

When was the first episode of The History of Chemistry?

The first episode of The History of Chemistry was released on May 7, 2022.

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