keyboard_arrow_up

How simple ideas lead to scientific discoveries

Adults Science
Adam Savage walks through two spectacular examples of profound scientific discoveries that came from simple, creative methods anyone could have followed -- Eratosthenes' calculation of the Earth's circumference around 200 BC and Hippolyte Fizeau's measurement of the speed of light in 1849.

Anti-Gravity Wheel Explained

Adults Science
It's a little shaky but if you average out the oscillations I think the result is clear. Again, huge thank you's to A/Prof Emeritus Rod Cross, Helen Georgiou, Alex Yeung, and Chris Stewart, the University of Sydney Mechanical Engineering shop, Duncan and co. Ralph and the School of Physics.

Questions no one knows the answers to

Adults Science
In the first of a new TED-Ed series designed to catalyze curiosity, TED Curator Chris Anderson shares his boyhood obsession with quirky questions that seem to have no answers.

Why do we cry? The three types of tears

Adults Science
Whether we cry during a sad movie, while chopping onions, or completely involuntarily, our eyes are constantly producing tears. Alex Gendler tracks a particularly watery day in the life of Iris (the iris) as she cycles through basal, reflex and emotional tears.

When Water Flows Uphill

Adults Science
In the Leidenfrost Effect, a water droplet will float on a layer of its own vapor if heated to certain temperature. This common cooking phenomenon takes center stage in a series of playful experiments by physicists at the University of Bath, who discovered new and fun means to manipulate the movement of water.

Why Do We Yawn?

Adults Science
What makes yawning so contagious?

Amazing Water & Sound Experiment

Adults Science
The effect that you are seeing can't be seen with the naked eye. The effect only works through the camera. However, there is a version of the project you can do where the effect would be visible with the naked eye.

The mystery of motion sickness

Adults Science
Although one third of the population suffers from motion sickness, scientists aren't exactly sure what causes it. Like the common cold, it's a seemingly simple problem that's still without a cure. And if you think it's bad on a long family car ride, imagine being a motion sick astronaut! Rose Eveleth explains what's happening in our bodies when we get the car sick blues.

What Causes Traffic Jams?

Adults Science
It's happened to all of us: we're cruising down the freeway and suddenly find ourselves stuck in a thick jam of other cars. Where did they come from? What caused the traffic mess? Scientific American editor Larry Greenemeier explains.

These Japanese Scientists Discovered A Way To Levitate Objects Using Sound

Adults Science
Droplets, pellets, a stick of wood, nuts, screws, diodes, if the object in question is small enough, than this machine can not only lift them into the air and hold it in place, but move them around on all three axes

Sulfur Hexafluoride Gas

Adults Science
A model boat floating on sulfur hexafluoride (gas significantly denser than air) at the Physikshow of the University of Bonn!

Sam Harris - It Is Always Now

Adults Science
Sam Harris, an American neuroscientist, author, and philosopher, shares his concept of the present moment and why it matters to live in the now rather than wait for the "now" of the future. Remember to live for each and every moment.

Time Travel

Adults Science
3 Simple Ways to Time Travel (& 3 Complicated Ones)

Sail - Awolnation on Musical Tesla coil

Adults Science
At Maker Faire KC 2013, playing "Sail" by Awolnation.

25 Mind Boggling Facts About Our World

Adults Science
Did you know that in all of history men have only mined two Olympic sized swimming pools worth of gold? Or that frogs use their eyeballs to swallow? If you did...congratulations, you're pretty smart. If not, read on because these 25 mind boggling facts about our world will probably change the way you see some things.

Can You Trust Your Eyes?

Adults Science
How do you know what you're seeing is real? These Illusions bring about the truth!

Incredible Chemical Reaction!

Adults Science
This is a classic chemical reaction. It's called the iodine clock reaction. There are several variations of how this chemical reaction can be performed using different chemicals than the ones I used in the video. You can order clock reaction kits from several science related websites. You can also use simple store bought chemicals like vitamin C, iodine, hydrogen peroxide and starch. A quick internet search will turn up multiple ways of performing the experiment.

What If You Stopped Going Outside?

Adults Science
If you spend most of your day inside, this is for you!

Weird Facts About How You See

Adults Science
You're doing it right now. It's time to learn something about it.

How do they do artificial diamonds?

Adults Science
Gemesis diamonds are mostly yellow due to the Nitrogen in the atmosphere getting inside the crystal during the growing process. Apollo diamonds can be created in all colors including colorless depending on how much impurity is introduced in the growing chamber. e.g. add boron to make blue diamonds.

How Old Are Your Ears?

Adults Science
How high can you hear? Take this 'test' to see how old your ears are!