SciShow
Why Gravitational Waves Are a Big Deal
Last week, it was announced that we've detected gravitational waves on Earth. Now, Hank explains what that means for the future and why it's such a huge deal.
TED Talks
Hamish Jolly: A shark-deterrent wetsuit (and it's not what you think)
Hamish Jolly, an ocean swimmer in Australia, wanted a wetsuit that would deter a curious shark from mistaking him for a potential source of nourishment. (Which, statistically, is rare, but certainly a fate worth avoiding.) Working with a...
TED-Ed
TED-Ed: Could the Earth be swallowed by a black hole? - Fabio Pacucci
From asteroids capable of destroying entire species to supernovae that could exterminate life on Earth, outer space has no shortage of forces that could wreak havoc on our planet. But there's something in space that is even more...
TED-Ed
TED-ED: Could we create dark matter? - Rolf Landua
Eighty-five percent of the matter in our universe is dark matter. We don't know what dark matter is made of, and we've yet to directly observe it, but scientists theorize that we may actually be able to create it in the Large Hadron...
Bozeman Science
Stickleback Evolution
Paul Andersen describes microevolution and macroevolution in the stickleback fish of Loberg Lake. He describes how anadramous fish repopulated the lake after poisoning and adapted to the new environment through natural selection. He also...
SciShow
Why Does Hair Get Frizzy When It's Humid?
If your hair gets frizzy when the humidity is high, try not to think of it as a bad hair day—you're really just a human hygrometer!
Crash Course Kids
Chemical Changes
We've talked about mixtures and solutions, solutes and solvents, but what about things that can't be undone? What about Chemical Changes? Would it surprise you to know that baking a cake is a Chemical Change? Or striking a match? In this...
Crash Course
The Big Bang, Cosmology part 1
Thanks to observations of galaxy redshifts, we can tell that the universe is EXPANDING! Knowing that the universe is expanding and how quickly its expanding also allows us to run the clock backwards 14 billion years to the way the...
TED Talks
TED: Cities are driving climate change. Here's how they can fix it | Angel Hsu
Cities pump out 70 percent of all global carbon emissions -- which means they also have the greatest opportunity to lower CO2 levels and energy consumption. Climate and data scientist Angel Hsu shares how cities around the world are...
Curated Video
Black Body Mystery: The Radiation Phenomenon
Black body radiation is a fundamental topic in physics that has significantly influenced our understanding of quantum mechanics. A black body is an idealized physical object that absorbs all electromagnetic radiation, regardless of...
Curated Video
Millikan's Oil Drop Experiment : Tiny Drops, Big Discoveries
Millikan's Oil Drop Experiment: A Discovery and Impact Experimental Setup: • The experiment involved measuring the force on charged oil droplets suspended between two metal plates. • The apparatus included an atomizer, observation...
Curated Video
The Antarctic: A Prime Location for Observing Stars
Australian researchers have discovered that the Antarctic plateau, specifically Dome C, offers the best viewing conditions on Earth for observing the stars. With minimal disruption to the light from distant stars, scientists can now...
Curated Video
How to do a Gemba Walk
In an earlier video, I answered the question, ‘What is Going to the Gemba?’ In this video, I summarize that one and go deeper into how to do a Gemba Walk. Gemba is a Japanese term that means ‘actual place’. ‘Going to the gemba’ means...
Curated Video
Meet the Fire Lookout of Big Sky Country
Are real-life fire lookouts becoming obsolete due to modern technology? Meet Mark Hufstetler, a fire lookout at Baptiste Tower in Flathead National Forest, Montana, who believes human observation is still imperative in fire detection and...
Curated Video
Knowledge & Politics
Seven established researchers provide real-world examples of the relevance of TOK (Theory of Knowledge) concepts in their research. This interdisciplinary TOK Sampler explores the overlap between theory of knowledge and the political...
Curated Video
Particle(s)
Used as a general term for the atoms and molecules that make up all matter. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
Curated Video
Magnify
To make an object or image appear larger than its actual size. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce...
Curated Video
Flame Colours and Spectroscopy
The discovery by Robert Bunsen which allowed elements to be identified more easily, and even led to the discovery of new ones. Chemistry - Atoms And Bonding - Learning Points. Gustav Kirchoff assembled the first spectroscope - two...
Curated Video
Making an Electromagnet
We create a simple electromagnet by coiling wire around a nail and passing current through it. The magnetic field around the electromagnet creates similar patterns in iron fillings to a permanent magnet. Physics - Electricity And...
Curated Video
Bouncing Eggs
We use vinegar to remove the shells from eggs without breaking them. Two eggs are placed in a beaker of vinegar, but one is half coated with clear nail polish. The exposed shells dissolve over time and the eggs swell as more water moves...
Curated Video
Ferrofluids
We compare the properties of three iron mixtures: iron and water, iron and oil and a ferrofluid - a mixture of compounds containing iron and oil. First, we look at how iron filings behave when mixed with water and then oil. We then hold...
Curated Video
Stomach Acid and Antacid
We use the enzyme pepsin and hydrochloric acid to simulate the conditions within the stomach in two boiling tubes. Cooked egg whites are ground and added to two boiling tubes of hydrochloric acid, but one is mixed with a crushed antacid...
Curated Video
Effects of Smoking
We test the effects of smoking by drawing first air and then cigarette smoke through apparatus that contains mineral wool and universal indicator. The air has no effect, but the smoke discolours the wool and changes the colour of the...