It's the International Year of Light!

The United Nations (UN) General Assembly 68th Session proclaimed 2015 as the International Year of Light and Light-based Technologies (IYL 2015). To celebrate this we've pulled out some of our best articles & videos looking at the basics of light, light in nature, lasers & energy!

1) How did scientists figure out the speed of sound and light?

It took researchers about 400 years to finally agree on these figures. Let's have a brief look at how this research got started.

2) Fun Science: Light (video)

A fun video about light & sound from the perspective of a science fan... rather than a "proper" scientist.

3) What would happen to a plant if you only provided it with light of from one wavelength?

During photosynthesis plants absorb visible light, mainly through the pigment chlorophyll, and use its energy to convert carbon dioxide and water into sugars required for metabolism and growth.

4) Lighting up the Night

Nature's spectacular light show in the sky is solar powered.

5) How does a rainbow form?

What happens when water and light meet? It's a rainbow!

6) Discovery of Lasers

The word laser is actually an acronym that stands for light amplification by stimulated emission of radiation.

7) I've heard a green laser beam is visible, but a red one is not. Why is this?

I've heard a green laser beam is visible, but a red one is not. Why is this?

8) Solar Powered Classroom (video)

A teacher and his class use solar energy to power their classroom!

9) Solar Energy (video)

Hank explains the power of solar energy and describes how it may fit into our diversified energy future.

10) Thermopower and the body heat-powered flashlight

As heat energy moves from one object to another, some of it can be siphoned off to do your bidding. (read about the original Canada Wide Science Fair entry for this project!)

Jessica Johnston

Jessica Johnston is the Manager for CurioCity & Web Strategy.  She started out in science (biology) before moving to IT, and now works with both! Passionate about promoting the awesome possibilities of both fields, she is also an admitted web geek.


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