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Snow!

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Snow! Via Kay Shaw Originally shared by Rajini Rao The Science of Snow! ❆ Stellar dendrites are falling. Rimed crystals are piling on so heavily, they you may see graupel . If you're lucky you may spot a split star or a rare capped column . No, I'm not talking gibberish! You can check the “Meteorological Classification of Natural Snow Crystals,” (1966) by Magano and Lee.  Did you know that there are 80 official patterns of snowflakes? Their characteristic 6-sided shape comes from the hexagonal lattice of water molecules: each vertex has an oxygen atom with the edges formed by hydrogen bonds on either side (see http://goo.gl/8ZUI0G ).  ❆ Is it true that no two snowflakes are alike? The short answer is yes ! At the atomic level, suppose one snow crystal has 10^18 water molecules, of which 10^15 will contain deuterium isotope (hydrogen with mass of 2 instead of 1) or an isotope of oxygen (mass of 18 instead of the more common 16). Imagine the different ways these could be ar...

Can anyone verify this?

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Can anyone verify this? Originally shared by LAURIE WADE ( O_O)    On August 15, 1977, the famous “Wow!” signal was detected by the Big Ear Radio Observatory at Ohio State University; it was thirty times stronger than the background noise but lasted only 72 seconds and was never heard again despite repeated subsequent searches. Read more here ===> http://www.bigear.org/wowmenu.htm #science    #scienceSunday     #scienceeveryday     #scienceporn     #radiosignal     #Wow   #space