Topic: science

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Camels vs. Cactus: Eating a prickly pear cactus with 6-inch needles

There's something about the prickly pear cactus that these camels like. And they like it enough to brave the six-inch needles on the pads or cladodes. Watch them eat in this video from Camel and Friends, a YouTube cha...

What is dust made of?

Less than a tenth the size of an ant, a dust mite’s whole world is contained in the dusty film under a bed or in a forgotten corner. This realm is right under our noses, but from our perspective, the tiny specks of br...

An up-close look at tardigrades and their poop

It is surely the stuff of science fiction: An extraordinary being arrives on Earth that can withstand a tortuous array of conditions: boiling, freezing, tremendous atmospheric pressure, near total dehydration, and exp...

How deep is the ocean?

How deep is the ocean? How far down have humans traveled and what did we find when we went there? This Tech Insider animation shows us the "vast distance between the waves we see and the mysterious point we call Chall...

Plastics 101: What is plastic and how is it made?

Once a completely natural product, much of today's plastic is man-made and largely dependent upon fossil fuels. From polymers to nurdles, learn how plastic is created and what we can do to slow the lasting repercussio...

The Coupled Pendulum, a physics demonstration

See the simple laws of physics at work: Two pendulums swing on a string, transferring energy from one to the other and back again. This demonstration by MarkHacks, made with cardboard, screw hooks, tape, string, and t...

Meet the robot workers at Amazon

In this facility in Boston, Massachusetts, small orange Amazon robots are built, tested, and autonomously driven onto shipping pallets for transport to Amazon fulfillment centers around the country. It's a 'nursery' f...

The Mars Helicopter, NASA’s small autonomous rotorcraft demonstration

Launching in 2020 on the belly of NASA's next Mars Rover, this small rotorcraft will be an autonomous asset from above the Red Planet, taking photos of the landscape and scouting for its rover. The pair are scheduled ...

What causes constipation?

Visiting the bathroom is part of the daily human experience. But occasionally, constipation, a condition that causes a backup in your digestive system, strikes. In some especially uncomfortable cases, the food you eat...

Why do we confuse weather and climate?

Weather and climate are not the same things, yet we might get confused between the two. What is weather and what is climate? And how is climate like the game Plinko? In this episode of PBS Digital Studio's Hot Mes...

How NASA’s InSight Will Plumb the Depths of Mars

Propelled by a predawn rocket launch from California, NASA’s InSight spacecraft is now on a voyage of some six months to Mars to study the deep interior of the red planet. “The science that we want to do with this ...

What’s the difference between hibernation and sleep?

The Arctic Ground Squirrel hibernates by burrowing under the permafrost and slipping into a state of suspended animation. The female black bear can give birth while she hibernates. The fat-tailed dwarf lemur prepares ...

Repopulating an Ohio creek with giant salamanders

Eastern hellbenders live throughout the Appalachian region in the United States. Their ancestors have been on earth for around 160 million years, but in the last several decades their numbers have dropped dangerously ...

Mapping whale songs in the South Pacific

Why do male whales make such complex songs? And what are they communicating? Dr. Ellen Garland has been analyzing sound arrangements made by the tens of thousands of whales living in separate communities across the So...

Fungus: The Plastic of the Future

In 2014, Ecovative Designs was working to combine mycelium with local crop waste to make a compostable biomaterial for packaging, and continue to expand their efforts. One example: A collaboration with Netherlands-bas...

Which is stronger: Glue or tape?

The oldest glue in the world is over 8,000 years old and comes from a cave near the Dead Sea. Today, we have enough types of tape and glue to build and repair almost anything. But what gives glue and tape their sticki...

The SUSTAIN Lab’s Hurricane in a Box

Brian Haus watches as the still air stirs into over 150 mph winds. The flat turquoise water suddenly churns a series of endless crashing waves of white frothy foam. Thankfully, Haus does not have to actually weather t...

Why Isn’t Pluto A Planet?

Pluto was discovered by Clyde Tombaugh in 1930 and was originally considered to be the ninth planet from the Sun. After 1992, its status as a planet was questioned following the discovery of several objects of similar...

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