How The Heart Actually Pumps Blood

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Jul 302014
 

In this Ted-Ed animated video, Edmond Hui teams up with animator Anton Bogaty to explain the often misunderstood inner-workings of the human heart.

Enjoy!

For most of history, scientists weren’t quite sure why our hearts were beating or even what purpose they served. Eventually, we realized that these thumping organs serve the vital task of pumping clean blood throughout the body. But how? Edmond Hui investigates how it all works by taking a closer look at the heart’s highly efficient ventricle system.

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Why Do Dogs Smell Each Other’s Butts?

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Jul 302014
 

The cutting edge of dog butt science.

Enjoy!

We are getting to the bottom of one of the biggest quandaries in science: Why dogs sniff each other’s butts. Turns out this behavior is just one of many interesting forms of chemical communication in the animal kingdom. Dogs use a special feature called the Jacobsen’s Organ to get chemical signals from their nose sent directly to their brain.

 

How Does Tylenol Work?

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Jul 252014
 

Acetaminophen, the active ingredient in Tylenol™, is one of the most popular pain relievers in the world, selling more than 27 billion doses in 2009 alone. It can reduce fevers, eliminate aches and pains and relieve cough and cold symptoms. But how does it work? The truth is, no one knows exactly. This week, Reactions examines the theories about the popular pill.

 

How The Elements Got Their Names

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Jul 212014
 

Joe Hanson of It’s Okay to Be Smart explains how the elements got their names in Dr. Seuss like rhyming fashion.

Enjoy!


How The Elements Got Their Names

Ever wonder what all those names on the periodic table actually mean?

There’s a whole lot of fascinating history on Mendeleev’s table. Some carry names from antiquity, some are named for people, some are named for places, and some are named for mythical beings. Discover the etymology of the elements!

 

Joke Of The Day: Buttered-Cat Array

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Jul 212014
 
Rubber Chicken When a cat is dropped, it ALWAYS lands on its feet; and when toast is dropped, it ALWAYS lands with the buttered side facing down. Therefore, I propose to strap buttered toast to the back of a cat.

When dropped, the two will hover, spinning inches above the ground, probably into eternity. A “buttered-cat array” could replace pneumatic tires on cars and trucks, and “giant buttered-cat arrays” could easily allow a high-speed monorail linking New York with Chicago.

 

 

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