How do you measure the distance to something so incredibly far away light a star? As you’ll see in this video from Scientific American, the math involved is actually quite simple and relies on a property called parallax. Click here to have a look.
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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
https://youtu.be/YV8TT9LRBrY Sitting around a campfire, you can feel its heat, smell the woody smoke, and hear it crackle. If you get too close, it burns your eyes and stings your nostrils. You... read more
Categories: Gr 9-10 Science, Gr. 11-12 Biology
https://youtu.be/aTspr-lG2nM Reactions is back with another round of chemistry life hacks. Our latest episode brings chemistry to the kitchen, and features science-backed tips to cook rice with... read more
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