Topic: science

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Explore the Science Behind Fireworks—and the Galaxy

When you watch fireworks burst with color, you're seeing examples of how stars and galaxies work: Blues from copper, yellows from sodium, bright whites from aluminum, barium greens, and reds made from strontium... The...

Sunlight is way older than you think – TED Ed

The random walk problem -- the "mathematical formalization of a path that consists of a succession of random steps" -- can be applied to sunlight... not the sunlight that travels from the sun to Earth, which takes onl...

Resonance, forced vibration, and a tuning forks demo

A U-shaped fork of steel first invented in 1711 by trumpet player John Shore, the tuning fork is a tool produces a specific note that helps musicians keep their instruments in tune. They also are a great conversation ...

Are We Really 99% Chimp? – Minute Earth

When researchers decoded the chimpanzee genome in 2005, they explained that we share 99% of our DNA with chimpanzees... but what does that specifically mean? This episode of MinuteEarth illustrates how that one percen...

Taking the very first picture of a black hole – Black Hole Hunters

From the excellent Out There series from The New York Times: Black Hole Hunters, the story of the Earth-sized array of observation stations synchronized to capture Sagittarius A*, the astronomical radio source at the ...

Exploding plants disperse their seeds with high pressure bursts

Violets, poisonous squirting cucumbers, and touch-me-nots or Impatiens capensis (not to be confused with these touch-me-nots) have an effective way of dispersing their seeds: They burst! The forceful ejection sends th...

Space X’s Falcon 9 falls back to Earth to The Blue Danube

To the tune of Johann Strauss II's Blue Danube waltz, Space X's Falcon 9 falls majestically back to Earth in real time. Falcon 9 is a two-stage rocket that transports satellites into orbit, and powers the Dragon space...

Chimpanzees Would Cook if Given the Chance, Research Says

Would chimpanzees be interested in cooking their food? Would they have the patience to wait if given the opportunity? To find out these answers, how do you create a safe experiment that doesn't include fire or real co...

You Have Mites Living On Your Face – Gross Science

Yep, you have mites living on your face. And in this episode of Gross Science, Anna Rothschild explains how they're eating, laying eggs, dying, and leaking feces. On your face. But don't worry because we've known this...

The Surprising Places We Waste Energy – It’s Okay to Be Smart

We're always told to turn the lights out as we leave the room, or to shut off the water while we brush our teeth, but those are just two places that we might be wasting energy. In Joe Hanson's third episode of It's Ok...

Celebrating Sally Ride, the first American woman in space

On June 18th, 1983, NASA physicist Dr. Sally Ride became the first American woman astronaut to fly in space. Orbiting Earth on Space Shuttle Challenger, she inspired an entire generation to follow their interests in s...

This mini origami robot self-folds, performs tasks, & can be dissolved

Researchers from MIT and TU Munich have debuted an insect-like, miniature, self-assembling origami robot at ICRA 2015. The tiny bot is 1.7cm by 1.7cm and is made of a neodymium magnet, PVC, and polystyrene or paper. W...

How Do Greenhouse Gases Actually Work?

The Earth and the Moon are essentially the same distance from the sun, yet the two rocks have very different surfaces thanks to our Earth's atmosphere. It shields us during the day, and at night, it traps enough heat ...

DIY Cloud Chamber – How to build your own particle detector

There's an easy way to build a particle detector for around $40. Yes, you can make your own particle detector to see invisible cosmic rays from space. In this video from US LHC at CERN -- LHC stands for Large Hadr...

SpaceX Crew Dragon Spacecraft – Pad Abort Test POV video

Blast off from zero to 100 mph in 1.2 seconds on SpaceX's Crew Dragon spacecraft during its May 6th Pad Abort Test. The test reached a maximum velocity of 345 mph before the trunk separated, the spacecraft's heat shie...

The first 21 days of a bee’s life, a time lapse in 64 seconds

Honey bees are such an integral part of our ecosystem -- they pollenate 1/3 of our food crops -- yet we don't understand all that we should about their life cycle, or what has been threatening them in the last few yea...

ROV footage of deep sea creatures from the coast of Puerto Rico

Real-time science collaboration is much easier thanks to today's streaming video technology. During dives made by a remotely operated vehicle (ROV) off the coast of Puerto Rico, a team of National Oceanic and Atmosphe...

Glass artist Kiva Ford makes handmade scientific & artistic glassware

For art or for science, glass artist Kiva Ford loves to make precise, custom vessels, beakers, sculptures, and more with glass. In this 2011 Etsy Handmade Portrait, Ford describes his work in Scientific Glassblowing (...

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