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The Powder of Sympathy

25 Feb 2022

Four hundred years ago Belgian physician Johann Baptist Van Helmont was persecuted by the Roman Catholic Church for promoting the use of the “Powder of Sympathy” that was supposed to treat wounds...

Here's Jeopardy!

10 Nov 2020

In many households, 7:00 pm is time for Jeopardy (although these days, with video recording and repeats on Netflix, any time can be Jeopardy time). For thirty-seven years many of us have invited...

Shaking a Champagne Bottle

17 Dec 2019

People readily understand that solids can dissolve in a liquid. Salt or sugar dissolve in water and the warmer the water, the faster the rate of dissolution. We learn this in elementary school. But...

What is this "isobutylene" I keep hearing pop up in the news?

5 Apr 2019

An explosion and fire at a Texas chemical plant fuelled by the extremely flammable gas isobutylene has killed one employee and left the public wondering why such a dangerously flammable gas is...

You Don’t Need to Burp Babies

29 Mar 2019

It’s a commonplace occurrence: When a baby is done eating, their mom or dad places them over their shoulder and pats their back to get them to burp....

It's Time to BBQ!

12 Jul 2018

The word “barbecue” derives from the ancient Caribbean tradition of supporting food over a fire with a scaffolding made from green wood which in Spanish was called "barbacoa." The technique itself...

Nervous about “nerve agents”

13 Mar 2018

It was back in 1939, that German chemist Gerhard Schrader was searching for better methods to control insects when he chanced upon a substance that had greater insecticidal activity than anything...

It’s Thanksgiving and time to talk..turkey

9 Oct 2017

Eventually we will run out of oil.  There is no doubt about that.  The earth is of a fixed size, and the amount of oil stored in the ground is not infinite.  We take it out of the ground and do not...

Excimer Lasers

2 Jun 2017

During the 1970’s in Moscow, Russia excimer lasers were first developed, consisting of both reactive and inert gases. When excited electrically, the mixture of these gases produces a dimer. Thus ...

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