Topic: science

Sort: Date | Title | Sort Ascending
View:

How to make simple homopolar motor ‘race cars’

Lay out a 'race track' of tinfoil, attach two round neodymium magnets to the ends of an AA battery x2 (or more) -- the polarity of the magnets matters, so experiment to see how your vehicle behaves (or doesn't) -- the...

Climate Change 101 with Bill Nye + solutions great and small

What is climate change, what causes it, and how do we mitigate its effects? Bill Nye summarizes Climate Change 101 in concert with National Geographic's Climate Change issue and COP21, the December 2015 Paris Climate ...

How a Space Suit Works – with Helen Sharman

Chemist Helen Sharman was the first British astronaut in space, and as a part of Project Juno in 1991, was the first woman to visit the Mir space station. In the video above, Sharman gives us a mini-tour of the space ...

How Google[x]’s Project Loon Tests Its Giant Internet Balloons

What if massive pumpkin-shaped balloons could bring internet access to rural and remote locations around the planet? Google[x], which also developed Google Glass and Google's Driverless Car, has a team working on gian...

DISHDANCE, a time lapse for The Skyglow Project

Created for The Skyglow Project, an astrophotography book and time lapse series by Gavin Heffernan and Harun Mehmedinovic, DISHDANCE observes massive radio telescopes during the day and night. The project also capture...

Why Isn’t It Faster To Fly West? – Minute Physics

When you think about how the Earth rotates -- to the east -- it would seem to make sense that a plane flying west would meet its destination sooner... after all, isn't the planet is spinning toward the plane? In fact,...

Why are there oyster shells in the ‘Chalk Pyramids’ of Kansas?

Fossilized oyster shells, coral, fish bones, shark teeth, and other marine organisms can be found in the 'Chalk Pyramids' or Monument Rocks that rise up from the flat plains of western Kansas. These ancient chalky spi...

How did clouds get their names? – TED Ed

In daydreaming out the window as a kid, Luke Howard began to informally study the constantly changing clouds in the sky. In 1802, he was the first to name cloud forms, as well as a variety of transitional cloud types....

Bats flip like Tony Hawk to land upside down

Like pirouetting figure skaters, twisting high divers, or a skateboarder trying to land a 900, bats use inertia to flip upside down before they land. Brown University evolutionary biologists Sharon Swartz and Kenneth ...

How to make a DIY ‘drone’ with balloons & a fishing rod

How do you get a bird's eye view of the surrounding landscape when you don't have an quadcopter or drone? In this episode of Earth Unplugged, Sam Hume cobbles together his own 'drone' for less then £50 (around $76). S...

The physics of ‘skydiving’ wind tunnel acrobats

In a vertical wind tunnel that's blowing air upward at 270 km/h (168 mph), four 'skydiving' acrobats perform a twisting, turning flying routine without ever colliding into each other. How do they perform epic looking ...

How Far Do Sneezes and Vomit Travel? – Gross Science

Let's enter the world of sneeze experiments and vomiting machines with Anna Rothschild as she explains just how far the tiny liquid particles from sneezes and vomit can travel... and it's farther than you think. 'Vomi...

This Technology Wants to Make Wheelchairs Obsolete

What if people who are currently wheelchair-bound could, in the future, put on an exoskeleton -- a wearable bionic exosuit -- as if it was simply a shirt and jeans? Ekso Bionics, a design and manufacturing startup out...

Why do autumn leaves cause train delays? – Liz Bonnin

Why do 'leaves on the line' cause train delays, especially in autumn? The serious danger comes from a series of physics challenges: Leaves are sucked onto the tracks by the fast moving trains. The train wheels crush t...

Macro Video of Iridescent Soap Bubbles – Stereokroma

The next time you get the opportunity to blow some soap bubbles, be sure to take a long, close look at them. Those ever-changing rainbows sliding around across the surfaces of the bubbles can be spellbinding... like a...

Solar Wind Strips Martian Atmosphere – NASA Goddard

In 2014, NASA's MAVEN (Mars Atmosphere and Volatile Evolution mission) spacecraft measured the speed and direction of ions escaping from Mars. The data collected as it orbited the Red Planet is visualized in this NASA...

General relativity & why GPS wouldn’t work if we didn’t know about it

General relativity, what Albert Einstein said was the happiest thought of his life, basically expands upon the idea that "the laws of physics are the same everywhere". Light and gravity behave in the same way for you....

Lunar Eclipses Explained + Does The Moon Really Orbit The Earth?

"As bright as the moon looks in the night sky, what we're really seeing is sunlight, and the percent of its face that's illuminated depends on where it is in relation to the Earth. At the point in its orbit when the m...