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PODCAST

The History of Chemistry

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,

science chemistry

All Episodes

23:29

125: Das Model

The History of Chemistry ·

2024/06/16

Here we discuss all sorts of kits chemists use to build models of different molecules. We start with the pre-molecule set built for John Dalton, and then we hear of August von Hofmann's set for lecture demonstrations. We talk of John Dewar's brass constructions, and then to Tinkertoy-like setups in the 20th century. Plastic first appears in molecular-model kits by the 1950s, and we continue through the later 20th-century. If you become a Patreon subscriber, you may download a supplemental she...

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20:39

124: Lumen Large

The History of Chemistry ·

2024/06/09

Our history of LEDs continues with the entry of LEDs into commercial lighting. We talk of different ways to get white light out of LEDs, and materials for white-light LEDs. We briefly discuss color temperature because there are different kinds of white. Then we hear of the publication of an article in 2000 that consolidated thinking about home usage for LEDs, and why LEDs have advantages over other lamps. We mention ways geometrically to optimize LED construction to maximize the amount of lig...

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21:51

123: Setting the Ground Rules

The History of Chemistry ·

2024/06/02

This episode gives a basic review of geochemistry, starting with pioneers such as Christian Friedrich Schönbein, Frank Wigglesworth Clarke, and thence into the 20th century, especially Victor Goldschmidt. We hear about the development of geochemical societies around the world, then we talk about various subfields of geochemistry. The question of "what's inside the Earth" is still a very active one, and we discuss ways to simulate the pressure inside the Earth, and likely constituents of the E...

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20:15

122: Catch the 'Wave

The History of Chemistry ·

2024/05/26

Even though the potential for using microwaves to do chemistry was there since 1946, it wasn't until the late 1970s that the first use of microwaves in the chemistry laboratory appeared. This episode covers the development of microwave chemistry from moisture analyzers to significant study of reactions, and then finally laboratory-standard microwave ovens appeared. We mention the controversy between Gregory Dudley and Oliver Kappe as to whether there were some special properties of microwaves...

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21:42

121: Let the Sun Shine in

The History of Chemistry ·

2024/05/19

We talk about perovskite minerals and compounds, their discovery, and general crystal structure. Then we learn about how researchers gradually learned about their interesting electrical and optical properties. We hear of Tsutomu Miyasaka’s paper about building a solar cell using these perovskite minerals, and the sudden interest in making commercial, practical solar cells from perovskites. We delve briefly into the electronic orbitals in perovskites, the engineering aspects of building photov...

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20:39

120: Snap Judgement

The History of Chemistry ·

2024/05/12

Click Chemistry came about as several researchers came to similar conclusions in parallel, but from different angles: Barry Sharpless, Morten Meldahl, and Carolyn Bertozzi. We hear about their research goals in the 1990s and early 2000s: to snap together smaller molecules in a reliable way, perhaps with pharmaceutical or biological experiments and results in mind. We learn of Sharpless's goals for Click Chemistry, which sometimes overlap with Green Chemistry.Support the Show. Support my podca...

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21:40

119: Tiny but Mighty

The History of Chemistry ·

2024/05/05

We reach the point in our chemical history when microplastics were first recognized as a pervasive environmental pollutant. Visible plastic bits were first found by Edward Carpenter and K.L. Smith in the ocean back in 1972, and such detritus was confirmed all over the world's oceans over the next decades, resulting in the name "Eastern Garbage Patch" by 1997. Yet only in 2004 did Richard Thompson first study microscopic bits of plastic. In this episode we define a microplastic, and discuss va...

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25:09

118: Hold Tight, Stick Tight

The History of Chemistry ·

2024/04/28

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24:19

117: The Set Table

The History of Chemistry ·

2024/04/21

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19:17

116: Open Frame of Mind

The History of Chemistry ·

2024/04/14

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22:04

115: Reach for the Stars

The History of Chemistry ·

2024/04/08

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22:40

114: We Can Work It Out

The History of Chemistry ·

2024/04/01

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25:06

113: Ready Set Go

The History of Chemistry ·

2024/03/24

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19:53

112: Connect the Dots

The History of Chemistry ·

2024/03/17

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20:41

111: O Say Can You See

The History of Chemistry ·

2024/03/10

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20:58

110: Rattle My Cage

The History of Chemistry ·

2024/03/03

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20:26

109: Bon Appetit

The History of Chemistry ·

2024/02/25

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21:20

108: Fuel Transformation

The History of Chemistry ·

2024/02/18

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24:12

107: Transfermium Wars

The History of Chemistry ·

2024/02/11

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25:31

106: Natural Order of Things

The History of Chemistry ·

2024/02/04

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187 results

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