It’s often said that light is an electromagnetic wave, a disturbance in electric and magnetic fields, but what does that mean? How are they made? Let’s take a deeper look at electrodynamics and this history behind the discovery to see if we can find an answer.
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Categories: Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Biology, Gr. 11-12 Chemistry
https://youtu.be/Cf7Ar3nEUmw UV at ground level is non-ionizing but it damages DNA and causes photoaging - how? Also, it turns out glass doesn't block all UV (specifically UVA passes through). This... read more
Categories: Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry, Gr. 11-12 Physics
https://youtu.be/1L7EI0vKVuU If you ever find yourself stranded in the snowy Arctic (or bored in Minecraft), you’re gonna need to know how to build an igloo. But how can building a house made of... read more
Categories: Gr 1-3 Science & Tech, Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry
[embed]https://www.youtube.com/watch?v=sy9ztJuZu2c&feature=youtu.be[/embed] We’ve already been told that everybody poops - but did you ever stop to consider why? It’s thanks to our heroic... read more
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