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I'm always on the lookout for scientific content.That's just the way I am, but it took me a while to find the best books, series, documentaries and more. Now, I'm going to share what I've found to be the best of the best in terms of interesting science stuff! Hope you agree! BOOKS!Don't hate on books guys, they're pretty amazing sources of information. NAPOLEON'S buttons
RATING - 10/10 AGE - 15 AND UPSeven brief lessons on physics
RATING - 9/10 AGE - 16 AND UPThe DISAPPEARING spoon
RATING - 10/10 AGE - 13 AND UPStuff matters
RATING - 10/10 AGE - 14 AND UPSeries and documentariesAnother amazing place to find information. Also an excuse so your parents let you watch TV. Genius Season 1 - Albert Einstein
RATING - 9/10 AGE - 14 AND UPEveryday Miracles - BBC
RATING - 9/10 AGE - 13 AND UPInside Einstein's mind - NOVA
RATING - 10/10 AGE - 15 AND UPYoutube ChannelsWho doesn't love YouTube? A great channel for anyone who loves Chemistry (me). NileRed makes lots of cool chemicals from chemicals that are readily available at a pharmacy or supermarket. He also does an Edible Chem series where he makes chemicals used in food and tries them. This channel is my personal favourite. RATING - 10/10 AGE - 15 AND UPMinutePhysics
RATING - 10/10 AGE - 14 AND UPVeritasiumRATING - 10/10 AGE - 14 AND UPThat's it for now!I'll keep updating this with more stuff as I discover it. Let me know if you have any suggestions of good books to read, series and documentaries to watch or youtube channels to subscribe to! over and out :)
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p=mv so if the photon has 0 mass then shouldn't it have 0 momentum?This is one that's stumped me for a long time, and now finally I think I've found the answer. It's to do with Einstein's E=mc^2. Rest massesThis concept was first proposed by Einstein in his Special Relativity. A rest mass is the mass of an object when it isn't moving at all, it has no velocity. Special relativity says that when an object is moving it's mass increases. So technically speaking you're heavier when you're walking around than when you're stood still, but the effect is ever so small. So because the photon is constantly moving at the speed of light, technically it has mass, even though it's rest mass is 0. And a photon never slows down so technically it always has mass. But it also technically doesn't. What's that got to do with e=mc^2?Well we can say the photon is also a wave (wave particle duality) and we can use the formula E=hf where E is energy, h is Plank's Constant and f is the frequency of the photon. From this we see that the photon has energy and from E=mc^2 we see that energy can also be mass. Now it's time to go off on a bit of a tangentActually when Einstein published his new theory back in the day, He wrote the formula as m=E/c^2 and not E=mc^2. This is because his theory wasn't trying to say that energy and mass can be converted from one to the other (that's actually kinda not true...), he was trying to say that mass is actually a form of energy. Cool hey? (or not :/ ) I think I got this mostly right... (I hope)If it's wrong let me know and I'll change it :). Hope you enjoyed reading and maybe learnt something new :0 |
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