Chemical Heritage Foundation

GroupAccount image

The Chemical Heritage Foundation is a library, museum, and research center dedicated to preserving and promoting the progress of science. Located in Philadelphia, CHF maintains world-class collections, including instruments and apparatus, rare books, fine art, and the personal papers of prominent scientists, all related to the chemical and molecular sciences.

Pieces

Caption: An engraving from Michael Maier's Symbola Aureae Mensae (1617) depicting an alchemical androgyne. , Credit: Wikimedia Commons. Also available in CHF's collections.
Just in time for Valentine's Day we explore the sexier side of alchemy. Historian Joel Klein explains how alchemists used passionate prose to disgu...

  • Added: Feb 05, 2013
  • Length: 13:59
Caption: 1950s ad from the Givaudan Flavorist. , Credit: the Society of Flavor Chemists Library at Monell Chemical Senses Center.
Today your taste buds take center stage. First, how super-tasters' genetic gift might afford them better health. Then the art of imitation flavors.

  • Added: Jan 23, 2013
  • Length: 16:09
Caption: The skeleton of Harry Eastlack, whose disease-ravaged bones are on display at Philadelphia's Mütter Museum., Credit: Evi Numen, 2011, for the Mütter Museum of The College of Physicians of Philadelphia.
In this episode we peel back our skin. First, an innovative technology that could provide early detection of osteoporosis. Then, a look at stone ma...

  • Added: Jan 11, 2013
  • Length: 16:24
Caption: The midnight sun., Credit: Louisa Jonas
We wrap up the three-part series A Day in the Life, spotlighting the common chemistry of morning, noon, and night. Today, how popular insomnia trea...

  • Added: Dec 28, 2012
  • Length: 15:42
Caption: What's hidden in your lunch?, Credit: Flickr user ilovememphis.
We continue the three-part series A Day in the Life, spotlighting the common chemistry of morning, noon, and night. In this episode, a look at the ...

  • Added: Dec 20, 2012
  • Length: 15:38
Caption: When it comes to kids and adults, the debate over fluoridated water has waged for decades., Credit: Flickr user sean dreilinger.
Today we begin the three-part series: A Day in the Life, spotlighting the common chemistry of morning, noon, and night. First, a look at what's lur...

  • Added: Nov 27, 2012
  • Length: 14:21
Caption: "Nothing sticks to 'happy pan,'" raves the bottom of this poster, the first ever advertisement for Teflon., Credit: Wikimedia Commons user trozzolo.
Treasure or toxin? In this episode we follow Teflon's rise from happy accident to indispensable tool at work, home, and even war.

  • Added: Nov 15, 2012
  • Length: 15:14
Caption: Sam Kean reading from his first book at CHF's inaugural Science Cabaret., Credit: Conrad Erb.
In this episode we welcome back author Sam Kean to discuss the secrets and surprises contained in our DNA.

  • Added: Oct 31, 2012
  • Length: 12:22
Caption: In Hieronymus Brunschwig’s Liber de arte Distillandi . . . (Strasbourg, 1512) two figures work with one of alchemy’s more grounded practices: distillation. From the Donald and Mildred Othmer Collection, CHF. , Credit: Will Brown.
In this episode, a conversation between two alchemy experts: James Voelkel, who curated CHF’s exhibit The Alchemical Quest, and Lawrence Principe, ...

  • Added: Oct 18, 2012
  • Length: 13:58
Caption: Arthur Henry Knighton’s Caustic Pot House Stacks, “A” Power Stack, “A” Pump Station, and “A” Evaporator Building., Credit: Image courtesy of the Herbert H. and Grace A. Dow Foundation. On view in CHF’s museum.
On today's show we track the evolution of smog from symbol of industrial progress to public-health catastrophe.

  • Added: Oct 09, 2012
  • Length: 14:19
Caption: A gourmet treat for some; a total gross-out for some others., Credit: Flickr user lmnop88a.
In this episode we test your gag reflex. First an exploration of rank, funky cheeses made from your own body's bacteria. Then the history of how di...

  • Added: Sep 18, 2012
  • Length: 13:13
Caption: Illustration of the carrack Mary Rose, which sunk off the coast of England in 1545. It's been remarkably preserved, thanks in part to resting in an anaerobic environment. , Credit: Original illustration by Anthony Anthony. Reproduction courtesy of Wikimedia Commons.
Ahoy, mateys. Join us on the ocean floor. In this episode we look at sunken ships: how they are preserved, and what they can tell us about past civ...

  • Added: Sep 05, 2012
  • Length: 15:35
Caption: Professor John Mainstone and the pitch drop experiment.
Good science takes time... or not? On today's show we explore the extremes. First the longest-running experiment in the world; then the near-instan...

  • Added: Aug 29, 2012
  • Length: 14:12
Piece image
We bring you some of our favorite segments from past Distillations episodes this week: attempts to contact aliens in space and the secret behind th...

  • Added: Aug 04, 2012
  • Length: 15:34
Piece image
We bring you some of our favorite segments from past Distillations episodes this week: animal communication in the Sonoran Desert and the toll of a...

  • Added: Aug 04, 2012
  • Length: 13:33
Piece image
This wraps up our three-part series Blood, Sweat, and Tears. First, how it feels to lose your ability to cry; then why onions bring on the waterworks.

  • Added: Jul 11, 2012
  • Length: 15:05
Piece image
In this episode we continue the three-part series Blood, Sweat, and Tears. First the history of deodorants; then experiments on how perspiration ca...

  • Added: Jul 05, 2012
  • Length: 16:44
Caption: Gradient centrifugation of infected Red Blood Cells, Credit: Ernst Hempelmann (Original work by A. Jung), via Wikimedia Commons
Park one of our three-part series Blood, Sweat, and Tears. First, how one man solved the mystery of blood circulation; then how researchers will bu...

  • Added: Jun 08, 2012
  • Length: 16:34
Caption: Love it or hate it., Credit: Flickr user andrewasmith.
In this episode we cross the Atlantic to learn what makes a perfect cuppa. Then we learn about the surprising health benefits of Marmite, a spreada...

  • Added: May 29, 2012
  • Length: 15:27
Caption: Remember when I leeched all the calcium from your bones?, Credit: Flickr user paparutzi.
Big eyes, soft skin, squeezable cheeks. No doubt, babies are adorable. But in this episode we take a break from our cooing to examine some more ser...

  • Added: May 16, 2012
  • Length: 13:43