SciShow
Sprites, Jets, and Glowing Balls: The Science of Lightning
Ever wonder how lightning works? Scientists are still figuring it out, but what we do know is fascinating. Learn about positive and negative lightning, red sprites, blue jets, and ball lightning in this episode of SciShow!
Bozeman Science
Emission and Absorption Spectra
In this video Paul Andersen explains how the photons emitted from or absorbed by an atom or nuclei is directly related to electrons moving between energy level. Absorption and emission are a direct result of the conservation of energy....
Bozeman Science
Fundamental Particles
In this video Paul Andersen explains how at the smallest level all matter is made of fundamental particles; including quarks, electron, photons and neutrinos. He explains how understanding the properties of these particles allows us to...
SciShow
Electromagnetism - Electrostatic Force: The Four Fundamental Forces of Physics #4a
Hank reaches the fourth and final of the four fundamental interactions in physics: electromagnetism. In this part, he teaches us about the electrostatic force, which builds up a charge in an object and can travel in the form of an...
TED Talks
TED: Imaging at a trillion frames per second | Ramesh Raskar
Ramesh Raskar presents femto-photography, a new type of imaging so fast it visualizes the world one trillion frames per second, so detailed it shows light itself in motion. This technology may someday be used to build cameras that can...
Bozeman Science
Matter as a Particle
In this video Paul Andersen explains how matter, like light, can be treated as both a particle and a wave. Louis de Broglie proposed that matter could act as a wave and described the wavelength of matter as a function of Planck's...
Curated Video
The Photoelectric Effect : Light and Electrons
The photoelectric effect is a phenomenon where electrons are emitted from a material, typically a metal, when exposed to light. This effect supports the quantum theory of light and demonstrates the particle-like properties of...
Curated Video
Photochemical reactions
A chemical reaction caused by the absorption of light. 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 abstract...
Curated Video
Northern Lights and Solar Flares
A unique combination of sunspots, solar flares and magnetic fields combine to create a visual spectacle on Earth. But what are the forces at work? Physics - Our Solar System - Learning Points. Natural light displays known as Aurora...
Curated Video
Moon Measuring
The ingenious system to measure the distance to the Moon involving Apollo astronauts, lasers and a unique mirror system planted on the lunar surface. Physics - Our Solar System - Learning Points. In 1969, the Apollo 11 astronauts left an...
Curated Video
How Do Lasers Work?
Concentrated light can be incredibly powerful and useful. Learn how laser beams are produced by controlling how atoms emit photons of light. Physics - Waves - Learning Points. Lasers are photons of the same frequency going in the same...
Curated Video
The Race for Absolute Zero: Laser Cooling
Lasers are usually associated with heat. But scientists have instead used them to reach the coldest temperature ever recorded. Could they reach absolute zero? Physics - Energy And Radioactivity - Learning Points. Absolute zero is...
Curated Video
MRI
MRI machines are now commonly used in hospitals to build amazing images of inside our bodies. Discover how magnets allow them to do this. Physics - Electricity And Circuits - Learning Points. MRI machines use magnets to take images of...
Curated Video
Gamma ray
High energy electromagnetic radiation, with extremely short wavelengths, often smaller than an atom. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
Curated Video
X-ray
Electromagnetic radiation present between ultraviolet and gamma rays on the electromagnetic spectrum, with wavelengths from about 0.01 to 10 nanometres. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using...
Wonderscape
Einstein's Miracle Year: Groundbreaking Discoveries of 1905
This video delves into Albert Einstein's "miracle year" of 1905, when he published revolutionary papers that changed our understanding of light, atoms, and the universe. Learn about his theories on photons and quantum theory, his proof...
Learning Mole
How Does it Work? - Solar Panels
This video is explaining how solar panels work for kids.
Science ABC
This Is What Happens When You Try To Grow A Plant In Artificial Light
Plants can grow in artificial light, but artificial light isn’t as intense as sunlight and has less red and blue light than sunlight. LED lights used in special indoor growth chambers reduce the difference between artificial light and...
Curated Video
Galileo's Gift
Nobel Laureate David Politzer describes Galileo’s vital lesson of obtaining knowledge by working with related similar but knowingly inappropriate models that can point towards a deeper understanding.
Curated Video
How We Use the Sun
Theoretical physicist and Nobel Laureate Roger Penrose (Oxford) describes how the sun's entropy is harnessed by all manner of life on earth.
Curated Video
Technology as a Proxy
SETI (Search for Extraterrestrial Intelligence) astronomer Jill Tarter describes how we use technology as a proxy for potential alien intelligence, and how our search involves looking for signals that nature doesn't make on her own.
Curated Video
Solar Limitations
Solar physicist Jenny Nelson, Imperial College, describes how we know that there is a basic limitation of efficiency of energy conversion of a solar cell that follows from our understanding of the panchromatic nature of the sun.