The Origin of Quantum Mechanics (feat. Neil Turok)

Many animals use the same five senses as we do, but these creatures take that beyond the next level.

In this video Paul Andersen explains how stratospheric ozone protects humans from ultraviolet light. He explains how stratospheric ozone is formed when diatomic oxygen absorbs an ultraviolet photon and is split into two free oxygen...

Have you ever taken a bite from a bright red apple and wondered why it looks red to you? Jessi and Squeaks talk about how our eyes and brains help us see color!

The human body is a complicated thing! To be able to move, fight off diseases, and even see colors, lots of different systems and organs need to work together. Squeaks' robot body is pretty complicated, too, so Jessi has put together a...

Howcast - If you have a stone that you're not sure is the real thing, try these methods to find out for sure.

Discover the innovative approach to building an eco-responsible home in Tijuana, addressing critical environmental issues like water conservation and recycling. Learn about the use of solar panels, recycled materials, and natural...

A key tool in atomic physics is the hydrogen spectrum, which shows the quantised energy levels of the electrons in a hydrogen atom. The electrons in hydrogen gas absorb energy and travel to higher energy levels when the gas is excited,...

Hubble doesn't just look at distant nebula and galaxies, but has also observed celestial bodies and events in our own solar system. So what has it seen?

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

Thanks to the Hubble Space Telescope, we have seen nebula like never before. But are they really as colourful as Hubble makes out?

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...

A layer in the Earth's atmosphere at 13 to 20km altitude with an unusually high concentration of ozone gas.
<

br/>

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

A reaction in which one functional group in a molecule is replaced by another functional group.
<

br/>

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

The range of electromagnetic radiation in the electromagnetic spectrum is huge. Where does this radiation come from and how do the frequencies and wavelengths vary? Physics - Waves - Learning Points. Electromagnetic radiation is all...

From radio waves to gamma rays, the electromagnetic spectrum is useful in different ways. How does this radiation differ and how can they be used? Physics - Waves - Learning Points. Electromagnetic radiation exists along a continuous...

We use a prism to split white light into its constituent colours. Light is passed through a slit in a screen before it hits the prism. The prism refracts the light and we can see the different colours. A second slit can be used to see...

Your outward appearance can be affected by what you put in your body as well as external factors. What are the vital nutrients for beautiful skin, hair and nails? Biology - Healthy Living - Learning Points. A balanced diet is the key to...

A fluorescent substance is one that absorbs light at one wavelength and re-emits the energy as light at another wavelength, usually longer, a phenomenon called fluorescence. A Twig Science Glossary Film. Key scientific terms defined in...

As summer intensifies, discover why our skin reacts differently to sun exposure, why some of us tan while others burn, and the essential role of sunscreen and sunglasses in protecting our skin and eyes. Learn the science behind melanin...

Dr. Forrester explains light energy and how it travels.

In this video we cover the following:

- The 7 different types, and order, of the waves in the electromagnetic spe
ctrum
- The phrase ROYGBIV to help you remember the order of colours in the visible ligh
t spectrum
- The...

This video covers:

- What irradiati
on is
- What contam
ination is
- What determines have harmfu
l radiation is:

1. Type of radiation
2. W
here you're exposed to it

3. The dose of...

Marine biologist Edie Widder at the Ocean Research & Conservation Association gives us a taste of some of what we don’t know about the fascinating phenomenon of marine bioluminescence.