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THE KNOWLEDGE FEED

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The Chemistry of Seasonal Affective Disorder

Kate Horowitz

A new video from the American Chemical Society explains how SAD happens and what you can do about it.

11 Behind-the-Scenes Secrets of Bartenders

Beth Anne Macaluso

Three pros share some tricks of their trade, including what you should buy for your home bar, the one thing you should never order, and how to strike up a conversation with that cute stranger across t

Mattress Company Makes "Bunk Beds" for People and Their Pets

Erin McCarthy

Colchão Inteligente Postural’s new mattress allows pet owners to share a bed with their dogs or cats without having to jockey for sleeping space.

How Understanding Champagne Bubbles May Improve Energy Efficiency

Maureen Monahan

We love the bubbly. It turns out scientists do too.

15 Souvenirs Kept by TV Show Cast and Crew

Stacy Conradt

After years spent working on a television series, it's only natural that cast and crew might want to take a piece of the experience home with them.

Top 10 Science Stories of 2015

Dan Falk

It’s been a busy year for scientists.

When a Dinner Party Was Held in an Iguanodon

Stacy Conradt

Whatever your New Year’s Eve plans are, they almost certainly pale in comparison to what British artist Benjamin Waterhouse Hawkins was doing on December 31, 1853.

Why Do Babies' Eyes Change Color?

In this episode of 'Big Questions,' Craig answers a pressing question from one of our YouTube fans.

Check Out These 10 Facts About Plaid

Sarah Grossbart

The unofficial uniform of farmers, grunge rockers, and twee hipsters, the pattern has been in style for some 3000 years.

What Explains Differences in Color Preference By Sex?

The science behind our inclination toward pink or blue is open to interpretation.

5 Questions: "Lem"my Kilmister

Questions:5
Available:Always
Pass rate:75 %
Backwards navigation:Forbidden

These Parrots Are the First Animals to Use Grinding Tools

Matt Soniak

Out of 300-plus parrot species, only a handful have been known to use tools. Now, a new study suggests that the greater vasa parrot (Coracopsis vasa) can be added to that short list.

American Girl Debuts a Diabetic Care Kit for Dolls

The Week

On January 1, the company will begin selling its newest accessory—an insulin pump.

The Top Wildlife Pictures of 2015 From the Wildlife Conservation Society

Rebecca OConnell

Who doesn't love a good animal photo roundup?

5 Environmentally Smart Ways to Dispose of Your Christmas Tree

D.J. MacLennan

Don't just leave it on the curb this year.

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