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Archive for the tag “chemistry”

Iridium

The dense metal with a high melting point is quite useful as a material for manufacturing crucibles or the tips of spark plugs. But what about vodka glasses?

How Fish Breathe Underwater

Water is made up of hydrogen and oxygen, so why aren’t we able to make like a fish and breathe underwater? Find out in this episode of BrainStuff.

Asparagus Pee

Asparagus is known for its great flavor, but also for its ability to make pee smell… different. In this video, biochemist and author Shirley Corriher explains the science behind this funky phenomenon.

The Barking Dog

No, the barking dog is not what you think. You won’t see and hear a hyperactive canine. But here, scientists simulate a slow-motion bark by mixing nitrous oxide (laughing gas) and sulfur dioxide in a gigantic test tube.

New Periodic Table Song

Michaael Moffit wrote and sings a new ode to the periodic table, based on Offenbach’s “Can Can.” H/T AsapSCIENCE

 

Bad Aftertaste of Toothpaste?

Bytesize Science takes on a common breakfast disturbance — the foul taste of orange juice after you brush your teeth. Toothpaste is loaded with a cornucopia of chemicals that add flavors, body, texture, and most importantly, the ability to clean your teeth. One compound in particular, a detergent known as sodium lauryl sulfate, is responsible for the suds that you produce when brushing. As it turns out, this compound has an interesting effect on your mouth’s taste receptors. Watch the video to find out exactly how SLS alters your sense of taste, and be prepared to amaze your friends at breakfast when you drop chemical facts on why this bitter combo leads to such a puckered up, gross experience.

Exotic Chemistry

In this week’s edition of SciShow news, Hank Green brings you discoveries involving two of the most exotic substances on Earth — the world’s rarest element and the world’s oldest water. Two great tastes that taste great together? Stay tuned to find out.

How to Speak Chemistrian

Learning to talk about chemistry can be like learning a foreign language, but Hank Green is here to help with some straightforward and simple rules to help you learn to speak Chemistrian like a native.

 

The Gas Laws

Alex Dainis shares a little bit of gaseous chemistry in this edition of Bite Sci-zed. To illustrate, she performs a simple, but nifty trick using a burning piece of paper to suck an egg into a bottle.

Chocolate’s Beneficial Chemistry

Besides buying a box of chocolates for your sweetheart this Valentine’s Day, you might also want to get a few boxes to stash away for yourself. Scientific research has proven that chocolate, in moderation, can be good for your health. Bytesize Science delves into the chemistry of chocolate to explain why this is so.

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