Meter is the standard unit of length used by most countries around the world. But how did they define it?

In order to understand how we study the universe, we need to talk a little bit about light. Light is a form of energy. Its wavelength tells us its energy and color. Spectroscopy allows us to analyze those colors and determine an object’s...

HAS SPACE ALWAYS BEEN BLACK? As long as we've been around, YES. But the universe gets much more exciting, AND much BRIGHTER, as we start winding our clocks back to the early days of the universe. Near the beginning of the universe, when...

In this video Paul Andersen describes some of the properties of electromagnetic radiation. The electromagnetic spectrum varies by wavelength from radio waves to gamma rays. We only see a portion of the spectrum known as visible light. ...

Is the universe expanding? About a hundred years ago astronomers made a discovery that helped us unravel the mystery of the history of the universe!

From corundum to alexandrite, there are rare minerals have multi-colors caused by how they form their structure!<br/>

Today Phil’s explaining the stars and how they can be categorized using their spectra. Together with their distance, this provides a wealth of information about them including their luminosity, size, and temperature. The HR diagram plots...

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...

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...

Your ability to see color relies on just three types of cones in your eye. Join us as we explain how these "brother" cones work together to paint your world, what happens when one is missing (color blindness), and test your own vision...

Science Kids Amazing Animal Superpowers V1-0002

The chameleon's ability to change color and blend seamlessly into its surroundings is not only a survival tactic but also a means of communication, temperature regulation, and mood...

In medicine, we use different types of lasers to fight cancer. In this video, we will learn everything about carbon dioxide (CO2), argon and neodymium: yttrium aluminum garnet (Nd:YAG) lasers and how they are used to treat cancer in a...

In this video, the teacher explains how sunlight appears in different colors depending on the particles in our atmosphere. They compare our atmosphere to a prism, where white light enters but is scattered into different colors as it...

How viewing Jupiter in infrared and ultraviolet can uncover its secrets.

This video discusses the concept of redshift and the expansion of the universe, starting with the discovery of the universe's expansion through the redshift of light from distant galaxies. It explains the three types of redshift: Doppler...

As you go faster, what happens to time and space? What would happen if you could manage to go the speed of light? Astrum Answers!

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...

There are three main reasons why we don’t see all the colors in a rainbow: 1. The colors we see in a rainbow are spectral, which means they are also present in the visible spectrum. 2. Some colors, like pink and brown, are made when two...

Chameleons dont change their color for camouflage, as most people think. They cant perfectly match your crazy pink curtains or blend into your blue couch. As much as Pascal from Disneys Tangled might change his colors on whim, alas, that...

An instrument that measures the intensity of electromagnetic radiation over a range of wavelengths.
<

br/>

A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise...

A very small unit of length equivalent to one ten-millionth of a millimetre, or 10^-10m.
<

br/>

A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise...

The complete range of wavelengths, considered as a continuum, of all kinds of electromagnetic radiation.
<

br/>

A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and...

A transparent object with flat surfaces that refracts light.
<

br/>

A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...

Electromagnetic radiation with a slightly longer wavelength than visible light, between about 700 and 1050 nanometres.
<

br/>

A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning...