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Rich Pollett
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Rich Pollett

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Dropping a neodymium magnet through a cooper tube fun with eddy currents

https://en.wikipedia.org/wiki/Eddy_current

tl;dr Magnet creates current in copper due to shifting magnetic field, current creates induced magnetic field and causes electromagnetic force on magnet.
#science   #magnetism   #eddycurrents  
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Ohh man, that magnet seems very.... finger-crushing.
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#StephenColbert  tries to coax some love for Pluto out of #NeildeGrasseTyson
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LL Pete
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It is such a perfect profile of the dog "Pluto" that I wonder if they faked it in the same Disney studio where they faked the Apollo moon landings. (Seriously, not serious...just joking, okay?)
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Ballmer sells windows1.0 #BringBackBallmerFor10  
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+Ruald Andreae by his funny stage show + entertainin, he helped microsoft and its windows so much , convinced , and justified milion of ppl round the world so that is why ..
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I saw a lot of the shows, but lately it gets on my nerves that any of the characters says just one sentence in a briefing. Lol
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Stephen Colbert and Neil deGrasse Tyson discuss NASA's historic Pluto flyby mission #plutoflyby  
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Periodic Table there is an element of this I do enjoy
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Hold on while I extract the Fourier series.
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What a perfect end to a Friday as I end my last call.
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And here we see a math problem in the wild #maths  
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From the Wikipedia article:
The car was designed to last for years in severe road conditions, and its reinforced unibody construction gave the Volga extra weight if compared to foreign analogs.
Spin like this is how the joke boasts about the Soviet cellphone — the biggest cellphone in the world — came to be.
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Chameleons have two finger-like appendages on each foot, and each foot has five claws—two on one "toe" and three on the other. They are also the only animal that can move its eye independently allowing them to look in opposite directions simultaneously.

Chameleon Facts:
http://www.livescience.com/51061-chameleon.html

Photograph by Florence Bennett

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Independent movement of eyes isn't needed to look in two different directions simultaneously.  Many herbivores have eyes that point in different directions in order to get a near-360 degree view so they can spot predators.

See rabbits and horses for two well-known examples.
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George: As I looked into the eye of the great planet ...

Jerry: Dwarf planet.

George: Whatever.

#nasa   #plutoflyby   #Seinfeld  
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Audience question: “My question is, why are there wasps? What purpose do they serve?”

Sir David Attenborough: “Well, the purpose of a wasp, as far as the wasp is concerned, is solely to make other wasps, which they do very well. From an environmental standpoint, well, wasps are major predators of other insects. I’m sure that you know the importance that predators play in ecosystem health, as well as the health of prey populations. If you mean what purpose do they serve Humanity, well, none; but then I hope we’re now beyond only being interested in, and protecting, species that we can exploit for own own benefit. We are not the be-all and end-all of Evolution, we just think we are.”

#wasps   #davidattenborough   #perspective   #science  
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Begging the question. Why assume it has to have a purpose at all, it does not.

Aside: some sand wasps exclusively eat horse flies which is good news if you've ever been bitten by a horse fly
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