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Topic: elements
Did an asteroid kill the dinosaurs?
Around 66 million years ago, all non-avian dinosaurs went extinct. Was the culprit a 6-mile wide asteroid that collided with Earth? Or did other factors contribute to the dinosaurs’ die-off? Paleontologist Aki Watanab...
The Universal Pattern Popping Up in Math, Physics, & Biology
Scientists have discovered a mysterious universal pattern that "connects a bus system in Mexico and chicken eyes to quantum physics and number theory." MentalFloss summarizes the formerly hidden phenomenon, known as u...
Melting a metal alloy spoon in some tea
Imagine stirring your tea and having your spoon disappear into your tea... melting quickly away. When one of Professor Sir Martyn Poliakoff's Periodic Videos viewers sent a metal alloy, Field's Metal, to their office,...
Conductive copper dominoes topple to turn on this lamp
Why simply flip a switch when you can turn on a lamp with a domino chain reaction instead? This is a copper domino light created by London-based design studio Glithero. Tip over the first conductive copper switch, the...
Planet-changing ‘invisible’ microbes on the deep sea floor
"We're making progress at a rate that's outpacing the textbooks. We can't write textbooks fast enough to cover all of the really fundamental discoveries that are happening in the field of microbial ecology right now.....
The Meissner Effect: How to levitate a neodymium magnet
A neodymium magnet cube sits on a surface of yttrium barium copper oxide—YBa2Cu3O7, nicknamed YBCO—inside the bottom of a styrofoam cup. A small amount of liquid nitrogen is poured slowly over the YBCO. As it cools, t...
Use a 9-volt battery to break water into its elemental components
In the 1987 miniseries The Ring of Truth: An Inquiry into How We Know What We Know, Philip Morrison proves that a water molecule is composed of two hydrogen (H) atoms & one oxygen (O) atom with a simple demonstration....
Pyrotechnics pro Jim Souza explains the art of a massive fireworks show
How do pyrotechnics experts stage professional fireworks shows for holidays and events like the Macy's July 4th Spectacular and both the 100th and 125th anniversaries of the Statue of Liberty? In this Wired video, fou...
The Science Of Firework Color
Sodium in yellow bursts, strontium in red, calcium gives us orange, barium for green, and copper for blue hues... and there are more where those came from. The science of firework color, as explained above by SkunkBea...
The surprising interactions between copper and neodymium magnets
Experiments with super strong neodymium magnets and copper! These surprising demonstrations of magnetic damping go beyond the magnet through a copper tube demo that we've previously seen. Watch as Night Hawk in Light ...
Envisioning Beautiful Chemistry: Bubbling
This series of short, artful science videos captures chemical reactions that generate gases, and the bubbles that those gases make their escape within. Beautiful Chemistry: Bubbling was filmed by Beauty of Science, a ...
The Genius of Marie Curie
Dr. Marie Curie transformed science and society with her discoveries. Her scientific partnership with Pierre Curie and the story of their heroic efforts that led to the discovery of polonium and radium are legendary.....
How Kanazawa gold leaf is made
Far too delicate to touch with fingertips—just one ten-thousandth of a millimeter thick—gold leaf foil is an extremely delicate, almost transparent material. It requires a humid climate, pure water for the manufacturi...
Humphry Davy’s Potassium Volcano
Humphry Davy is one of the best know men of science of the nineteenth century. He isolated nine different chemical elements, was the first person to inhale nitrous oxide and invented the miner's safety lamp known as t...
One Town, Four Elements: Ytterby
There's a small town in Sweden that has not one, not two, not three, but four elements named after it. Those elements--yttrium(Y), terbium (Tb), erbium (Er), and ytterbium (Yb)--were discovered by part-time chemist Ca...
What can you do with a large neodymium magnet?
Neodymium magnets are really strong. The larger they get, the more careful you need to be to avoid being pinched or struck from the force of their attraction. This video from Magnetic Games cautiously explores what ca...
Metal crystals forming in time lapse
From Italy-based chemistry student Emanuele Fornasier, this is Crystal Birth, one of the many chem vids he's created as a video and photo enthusiast. He writes: This video is the beginning of a long term chemistry...
The Elements with 4 new elements – Helen Arney
There are four new elements on the Periodic Table: Nihonium (Nh), Moscovium (Mc), Tennessine (Ts), and Oganesson (Og) for elements 113, 115, 117, and 118 respectively. The International Union of Pure and Applied Chemi...
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