Topic: electrons

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How do solar panels work?

The Earth intercepts a lot of solar power: 173,000 terawatts. That’s 10,000 times more power than the planet’s population uses. So is it possible that one day the world could be completely reliant on solar energy? ...

Humpback whales swim under the northern lights

Off the coast of Kvaløya island in Tromsø, humpback whales swim beneath the northern lights. The brief scene was captured by Norwegian photographer Harald Albrigtsen for Norwegian public television (NRK). Cue the auro...

Understanding the Magnetic Sun – NASA Goddard

This dynamic computer model of our sun reveals the behavior of its invisible magnetic structure. The pink and green indicate open magnetic field lines that reach out into space, while the "closed" white lines loop bac...

How To Make Glow-In-The-Dark Slime! – Gross Science

Phosphors, polymer chains, and photons! In this episode of Gross Science, Anna Rothschild shows us how to easily make glow-in-the-dark slime using common household items: Hot water, borax, glow-in-the-dark paint, and ...

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...

The science of static electricity – TED Ed

What is static electricity? Why do we get a tiny spark when we've walked across a carpet and touched a doorknob? Or have you ever pet a cat and then picked up something metal, like a spoon to stir up cat food? Zap! (A...

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...

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...

ExpeRimental: How to Make Static Magic

Reveal your kids' Jedi powers using static electricity with this episode of ExpeRimental from The Royal Institution of Great Britain. Watch ordinary household objects move without being touched as neuroscientist Profe...

Dropping a neodymium magnet through a thick copper pipe

There are quite a few neodymium magnets falling through copper pipes on the internet, but we can still understand why this demonstration video is making the rounds: it’s just so cool lo...

Just how small is an atom? – TED Ed

What is an atom and exactly how small is it again? And what’s in it? And how can I understand that in practical, everyday terms? — Grab a bowl of blueberries to snack on and we’re on our way with thi...

Neodymium magnet + copper pipe = magnetic damping

Neodymium magnet + copper pipe = magnetic damping: When a magnetic field moves through a conductor a current called an Eddy current is induced in the conductor due to the magnetic field’s movement. The flo...

The Museum of Science and Energy’s Van de Graaff Generator

The Museum of Science and Energy in Oak Ridge, Tennessee introduces the Van de Graaff Generator and static electricity! After they make everyone’s hair rise, they create some serious sp...


 
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