Topic: physics

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The Electric Sausage: A static electricity demonstration

Perhaps you've experimented with static electricity by using a balloon, paper clippings, your hair, a pencil, a plastic bag, or a Van de Graaff Generator... but have you ever used a sausage to see static electricity i...

Hydrophobic metal made with laser-etched microscopic patterns

Scientists from the University of Rochester have created water-repelling metal by laser-etching nanostructures into the surface. Watch as water droplets bounce like water balloons off of the metal's super-hydrophobic ...

What makes that fresh rain smell? MIT films rain drops to find out

Why do we smell that fresh earthy scent before and/or after it rains? With high-speed cameras, MIT researchers have filmed rain drops, and believe that the footage explains petrichor, the "pleasant smell that frequent...

How Small Is An Atom?

Using a strand of hair, your fist, rice and sand grains, as well as the room you're sitting in right now (assuming it's not a huge gymnasium), let's try to visualize the basic building block of everything around us: A...

The Ring of Truth: Two Hydrogen Atoms & One Oxygen Atom

Possibly the most well-known scientific formula on the planet, H2O is one of those terms that we see around all the time. We know that H2O means water, and that a water molecule is composed of two hydrogen (H) atoms &...

Deep Look: The Fantastic Fur of Sea Otters

Sea otters are creatures who live in water that's far too cold for their bodies. There are other animals, like whales and sea lions, that are insulated from the cold by blubber, a layer of fat under their skin, but as...

Cambridge Ideas: The Sticky Feet of Ants & Cockroaches

Have you ever watched an ant walk up a wall? Have you seen one upside down on a ledge while carrying something? How do insect feet stick like that?! Get a very close look at the minuscule foot anatomy of ants and cock...

Science Take: The Hidden Complexities of the Simple Match

Schlieren flow visualizations illuminate a world of activity that we almost never pay attention to, even when we're causing it to happen. Simple things like breathing, sneezing, clapping hands, or just producing heat ...

The Birth of a Snowflake (A snowflake melts in reverse)

What if puddles turned into snowflakes? If they did, it might look something like this: YouTuber Armand9x filmed this snowflake melting and then ran it backwards to create The Birth of a Snowflake, a short but sweet 2...

What happens when you pour ball pit balls onto an escalator?

They bounce down, they’re carried up, they bounce down, they’re carried up… how long can this go on?! This is what happens when someone pours a huge bag of ball pit balls onto an escalator. (P.S. kiddos, it’s best not...

How to build your own Wave Machine physics demo

This National STEM Centre DIY Wave Machine demo is a perfect hands-on experiment for home or in the classroom. The ingredients: Duct tape, wooden kebab skewers, and jelly babies, (or dots... or maybe gummy bears if th...

How to Make the World’s Simplest Electric Toy Train

How to make the World's Simplest Electric Toy Train from the Amazing Science YouTube channel, a super delightful science experiment that will wow kids, friends, family, science classes... pretty much everyone on the p...

It’s Okay to Be Smart: Where Do Birds Go In Winter?

Where do birds go for the winter, and when did we first figure out where they were disappearing to every year? Do they go to the moon, or are they off to fight battles with goat-riding armies? (Spoiler alert: Those th...

Physics Girl: How to make a Crazy Pool Vortex

Have a plate, a pool, and some food coloring? In this experiment, Physics Girl Dianna Cowern makes strange black circles form by briefly dragging a plate through the pool. On a sunny day in still water, those black ci...

Frozen bubbles: Ice crystals form on bubbles in real time

Watch ice crystals form in real time on these spinning and floating soap bubbles, filmed in -40°C weather in Northern Sweden. The crystalized spikes grow outward quickly as the low sun lights the surfaces of the spher...

Minute Earth: Why Do Rivers Curve?

"...All it takes to turn a straight stretch of river into a bendy one, is a little disturbance and a lot of time, and in nature there's plenty of both." In this Minute Earth episode, narrated by science writer Emily E...

CYMATICS: Science + music = audio frequency visualizations

With help from a Chladni Plate, vibrating liquid on a speaker dish, a hose pipe optical trick, ferrofluid, a Ruben's Tube, and a Telsa Coil, New Zealand musician Nigel Stanford showcases audio frequency visualizations...

Non-Newtonian fluid bouncing in super slow motion (1600fps)

We've seen oobleck bouncing on a speaker before, but we've never see it in 1600fps super slow motion like this. Watch as The Slow Mo Guys color oobleck red, puddle it into an old speaker, and slow it way, way down. ...