Topic: science

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LIGO & The First Observation of Gravitational Waves – CalTech

On September 14, 2015 at 5:51am ET, the Laser Interferometer Gravitational-Wave Observatory (LIGO) detected ripples in the fabric of spacetime. One hundred years after Albert Einstein predicted the existence of gravit...

Can you push a spacecraft with light? – Physics Girl

In this episode from Physics Girl, Dianna Cowern explains how space ships can use sunlight to travel the stars in the same way that boats use wind to move across the seas. While solar sail spacecraft design is a more ...

Venus flytraps count to avoid being tricked

If you're a venus flytrap (Dionaea muscipula), how do you know you've got a fly in your midst and not a raindrop? You count. Via ScienceMag: In order to mimic insect prey, the scientists stimulated the hairlike sen...

Go on a Snowflake Safari

The next time you're going out in the snow, take a magnifying glass with you and see if you can find an elusive 12-sided snowflake... and if you don't happen to see that one, take note of the ones you do find. Is it n...

Evidence of a Ninth Planet

Thanks to mathematical modeling and computer simulations by CalTech researchers Konstantin Batygin and Mike Brown, we now have strong evidence that there's a large planet -- about 10x Earth's size -- orbiting in an ex...

Subvisual Subway – The Art of New York City’s Bacterial World

Why do we wash our hands after we've been riding on public transportation? Is it true that "using the handrails on the subway is like shaking hands with 100 people"? New York City-based typographer and designer Craig ...

The Foldscope – A Paper Microscope that Costs $1

To help make microscopes as accessible and as sturdy as pencils, Stanford University biophysicist Manu Prakash created an ultra-low-cost origami-based microscope. He was inspired by a 2011 visit to a Thailand clinic w...

Why Do Deep Sea Creatures Look So Scary?

Why Do Deep Sea Creatures Look So Scary? Anna Rothschild of Gross Science explains how different it is at the bottom of the sea: Food can be scarce, there's tremendous ocean pressure, and it's dark. These environmenta...

Meet the Titanosaur at AMNH

A mighty Titanosaur, the recently-discovered herbivore that measures 37.186 meters (122 feet) long, now stands on the fourth floor of New York City's American Museum of Natural History. Its discovery is so recent (201...

The Stroop Test

After we learn to read, recognizing words becomes an automatic behavior that our brains can process much faster than recognizing colors. For example, say these words: Red. Green. Blue. So what happens when we intro...

The iPhone of Slide Rules – Numberphile

From Numberphile, science and math writer Alex Bellos introduces the slide rule and then shares "the iPhone of Slide Rules" -- the Halden Calculex. On the pocket-sized disk made in Manchester, circa 1906, CollectingMe...

Jump In Jerboas – Science Friday

"A furry little rodent version of a Tyrannosaurus Rex," the jerboa has tiny forelimbs, a "noodle" tail that helps with them with balance, long legs and really long feet, with toes that support their speedy hops. W...

Drifting With the Ice: Life on an Arctic Expedition

For five months in 2015, a team of researchers drifted with polar ice, their ship tethered to an ice floe as they collected data to help them better understand how the loss of sea ice will affect the planet. The air a...

How do we know what color dinosaurs were?

The meat-eating microraptor was a black-feathered, four-winged dinosaur. How do we know its feathers were black? The evidence is in the microraptors' fossils. This TED Ed explains. Plus, more from Wikipedia: In Mar...

Circular motion demonstration with a sparkler & a hula hoop

From physics teacher and film maker Alom Shaha, check out these simple demonstrations showing how something moving in a circle will move in a straight line when you remove the centripetal force acting upon that thing....

A robot vehicle that drives on walls using propellers

Drive on the ground, drive on the wall, maybe, just maybe, drive on the ceiling. The result of a collaboration between Disney Research Zurich and ETH Zurich, VertiGo is a four wheel vehicle that appears to defy gravi...

Annotated time lapse assembly of a wind turbine

From excavation to operation, it takes three weeks to install a wind turbine. Watch it happen in under six minutes in this wind turbine promo video from MidAmerican Energy, filled with facts layered on time lapse foot...

Madeline the Robot Tamer

Allowing people to easily direct industrial robot actions through human movement, researcher, designer, and educator Madeline Gannon developed a gesture-based communication software, Quipt, as an artist-in-residence a...

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