Crash Course
Vision: Crash Course A&P
Next stop in our tour of your sensory systems? VISION. With a little help from an optical illusion, we take a look inside your eyes to try to figure out how your sense of vision works -- and how it can be tricked. *** Table of Contents...
SciShow
How Do Fabric Brighteners Work?
Fabric brighteners can liven up your old, faded clothing. But they don’t actually clean your clothes, and they’re often banned in the military!
Be Smart
DNA Doesn't Look Like What You Think!
Biology textbooks are full of drawings of DNA, but none of those show what DNA actually looks like. Sure, they're good models for understanding how DNA works, but inside of real cells, it's a whole lot more interesting. Learn why we...
Bozeman Science
Electromagnetic Radiation
In this video Paul Andersen details the waves in electromagnetic radiation. There is an inverse relation between the wavelength and frequency of electromagnetic waves. Electromagnetic radiation includes gamma rays, x-rays, infrared...
Bozeman Science
Light
Paul Andersen explains how natural selection is a major mechanism in evolution. The video begins with a discussion of Charles Darwin and the details of natural selection. The data of the peppered moth during the industrial revolution is...
Bozeman Science
ESS1A - The Universe and its Stars
Paul Andersen describes our place on the Earth in the Solar System within the Milky Way Galaxy in the Universe. The make-up and origins of the Universe are included along with stellar evolution. A teaching progression K-12 is also included.
TED-Ed
TED-Ed: Light waves, visible and invisible - Lucianne Walkowicz
Each kind of light has a unique wavelength, but human eyes can only perceive a tiny slice of the full spectrum -- the very narrow range from red to violet. Microwaves, radio waves, x-rays and more are hiding, invisible, just beyond our...
SciShow
The Legacy of the Spitzer Space Telescope - SciShow News
On January 30, 2020, we had to say goodbye to NASA’s Spitzer Space Telescope after more thank 16 years of revolutionizing infrared astronomy. Today, SciShow sends it off and says thank you by taking a look back at it’s incredible legacy.
Curated Video
Why Neutrinos Matter
Are Neutrinos useless? Would we exist without neutrinos? What are neutrinos? And what purpose do they serve? Where do Neutrinos come from? They are the second most abundant particles after photons. They do not carry a charge, and they...
Curated Video
What Atoms Really Look Like: The Quantum Model Explained
When Ernest Rutherford realized that atoms have a heavy nucleus, he hypothesized that the way the moon orbits earth is the same as the way an electron orbits the nucleus of atoms. We now know an atom would not look anything like this. So...
Curated Video
Why and how do we use X-rays in medicine
Have you ever wondered what are X-rays used for in medicine? And how do they work? Are X-rays dangerous? In this video, we will be answering all the lingering questions you may have about this popular medical imaging technique....
Curated Video
Electromagnetic Waves: The Spectrum of Light
Electromagnetic waves are fundamental to understanding the nature of light and are oscillations of electric and magnetic fields that travel through space, carrying energy from one place to another. The spectrum of light is a small...
Astrum
Quasar Spotted in the Milky Way!
Radio Astronomers discovered hundreds of Quasars hiding in our galaxy.
Astrum
The Deepest We Have Ever Seen into Jupiter's Clouds
How viewing Jupiter in infrared and ultraviolet can uncover its secrets.
Astrum
Where Did the Big Bang Happen?
Where is the centre of the universe? Where do astronomers look in space to see where the Big Bang originated?
Science ABC
What is Blackbody Radiation: Explained in Simple Terms
A black body is a theoretical or imaginary object that perfectly absorbs all incoming electromagnetic radiation, and also emits radiation, like heat and visible light, based on its temperature. A black body is considered theoretical...
Science ABC
Does WiFi Have the Power to Travel Through Walls?
Wi-Fi signals can penetrate walls using radio waves in the frequency range of 2.4GHz or 5GHz. These wavelengths are small enough to pass through cracks and openings in walls. WiFi signals also reflect off objects, allowing the signals to...
Curated Video
Infrared light
Electromagnetic radiation with a slightly longer wavelength than visible light, between about 700 and 1050 nanometres. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...
Curated Video
Electromagnetic radiation
A wave with both magnetic and electrical field components, which oscillate perpendicular to each other. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
Curated Video
Transparent
Capable of transmitting light, or more generally something that allows radiation to pass through relatively unhindered. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...
Curated Video
Ultraviolet light
Electromagnetic radiation in the region of the spectrum between visible light and x-rays, about ten to 400 nanometres in wavelength. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
Curated Video
How Do Mobile Phones Work?
Microwaves are not only used to heat food. Mobile phones utilise this type of electromagnetic radiation, allowing us to communicate over large distances. Physics - Waves - Learning Points. Mobile phones work by converting the sound into...
Curated Video
Infrared: Snake Hunt
Humans are not able to see infrared radiation without specialised equipment, but certain snakes can detect infrared radiation. See how they use it to deadly advantage. Physics - Waves - Learning Points. The pit viper uses special sensors...
Curated Video
Factpack: Animal Vision
The different ways animals view the world, from colour perception to UV rays. Physics - Waves - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use to grab attention at the start of...