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The Powder of Sympathy

9 Apr 2025

Four hundred years ago, Belgian physician Johann Baptist Van Helmont was persecuted by the Roman Catholic Church for promoting the use of the 鈥淧owder of Sympathy.鈥 The idea had been originally...

RECCO Reflectors Echo Safety Signals

14 Mar 2025

A goal of mine in 2025 was to tackle a new outdoor sport: backcountry skiing. With the promise of untracked snow and uncrowded runs, venturing off-piste was enticing. But with that also came the...

I鈥檝e Been Wearing Sunscreen Wrong

7 Mar 2025

This article was first published in The Skeptical Inquirer.

A Little Hairy Chemistry

4 Mar 2025

Hair is composed of a type of protein called keratin that is formed within the hair follicle, a cavity in the skin surrounded by cells that provide the amino acids and other components needed for...

Roger Bacon, Gunpowder and Virgins

26 Feb 2025

In the 1960's the Dupont Company adopted the slogan: "Better Living Through Chemistry." The catchy motto quickly caught on in an era when science reigned supreme. The space race had captured...

It鈥檚 Hermetically Sealed!

19 Feb 2025

According to Greek mythology, Hermes moved freely between the worlds of the mortal and the divine and it was his job to conduct souls into the afterlife. He was quick and cunning, often outwitting...

The Male Musk Deer Owes Gratitude to Chemistry

29 Jan 2025

Arab perfumers in the sixth century were the first to discover that diluting the obnoxious smelling dried contents of the little pod found near the anus of the male Asian musk deer not only...

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