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Using GPS to Get Around Is Making Us Dumber

Adults Science
GPS services have made getting from point A to point B a lot easier, but what effects does this have on our brains?

How You Can Survive With Only One-Third of Your Blood

Adults Science
How much blood can a human lose without dying, and how does the body replenish that blood once it's gone?

9 Signs You're Not Drinking Enough Water

Adults Science
We've heard it. We get it. We know! Drink more water! But it's not just overplayed advice from fitness magazines and your mother. When we get dehydrated our bodies send out clear warning signs that we need to check our fluid levels. If that happens, it's important to do everything to get your hydration level back on track. Here are some of the symptoms associated with not drinking enough water...

The Science Of Racism

Adults Science
Why are some people racist, but others are not?

Why do we itch? - Emma Bryce

Adults Science
The average person experiences dozens of individual itches each day. We've all experienced the annoyance of an inconvenient itch - but have you ever pondered why we itch in the first place? Is there actually an evolutionary purpose to the itch, or is it simply there to annoy us? Emma Bryce digs deep into the skin to find out.

Destroying Cancer Using Your Own Genetically Modified Cells

Adults Science
Scientists are taking cancer patients' immune cells and engineering them to fight cancer. How does it work?

How this guy found 83 messages in bottles

Adults Science
Clint Buffington has found 83 messages in bottles - and you could probably do it too. Vox's Zachary Crockett and Phil Edwards found out how.

How does your body know what time it is? - Marco A. Sotomayor

Adults Science
Being able to sense time helps us do everything from waking and sleeping to knowing precisely when to catch a ball that's hurtling towards us. And we owe all these abilities to an interconnected system of timekeepers in our brains. But how do they work? Marco A. Sotomayor details how human bodies naturally tell time.

The Science of Marathon Running

Adults Science
So maybe we can't outrun cheetahs or antelope, but humans are uniquely adapted for long distance running. What does science have to say about marathon running? To find out, (and because I was feeling a little crazy) I decided to run one!

We Got Our DNA Tested, Here's How It Actually Works

Adults Science
Trace and Amy get their DNA test results, and we talk to an expert about how scientists actually get genetic information out of DNA.

How the Meter Became the Meter

Adults Science
The meter is the world's ultimate measure, but how did it become "the" meter? What is this measurement based on? The story of this revolution in measurement traces its roots to the French Revolution. Scientists decided that an equal and united people should have equal and united measures. So they sent a pair of young astronomers out to measure the world, and invent the meter. Little did they know they'd find nothing but war, deception, and strife along the way. As a result of this ill-fated mission, the meter carries an error that still persists today. Still think the metric system is so perfect?

How Engines Work - Smarter Every Day

Adults Science
See Through engine in slow motion.

Hydrogel: The Future Of The 'Smart Band-Aid'

Adults Science
Engineers at MIT have found a way to prevent hydrogels from dehydrating.

How An Igloo Keeps You Warm

Adults Science
Building a perfect igloo takes cool science!

Why Doesn't Time Flow Backwards?

Adults Science
Thanks to Google Making and Science for supporting this series, and to Sean Carroll for collaborating on it!

Crazy Lake Experiment

Adults Science
1 tablespoon of olive oil destroys half an acre of waves on this lake. What The Physics?!

Why doesn't anything stick to Teflon?

Adults Science
Teflon was in the spacesuits the Apollo crew wore for the moon landing, in pipes and valves used in the Manhattan project, and it may be in your kitchen, as the nonstick coating on frying pans and cookie sheets.

Handheld TESLA COIL GUN at 28,000fps

Adults Science
This is a the musical Tesla coil used in the video, It was a lot of fun and I recommend getting one!

Death From Space

Adults Science
There are cosmic snipers firing at random into the unvierse. What are they and what happens if they hit us?

Indestructible Coating?!

Adults Science
Used in everything from bullet-proof vests to the walls of the Pentagon, polyurea's strength comes from its long-chain molecules.

What the Fahrenheit?!

Adults Science
The crazy story of the arbitrary temperature scale used in a tiny minority of countries.