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POPSThe mystery of moving rocks is yet to be revealed... "Over the years there were many speculations and possible explanations made on how the stones move, ranging from supernatural to very complex. Most hypotheses favored by interested geologists posit that strong winds when the mud is wet are at least in part responsible. But some stones weigh as much as a human, which some researchers feel is too heavy for the area's wind to move. They maintain that ice sheets around the stones either help to catch the wind or move in ice flows. But both theories don't explain how two rocks right next to each other could go in two opposite directions or one could stay put while the one three times the size, doesn't. So far every attempt of explanation has been insufficient and purely assumptive. The mystery of moving rocks is yet to be revealed".
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POPSZebra's Stripes, Butterfly's Wings: How Do Biological Patterns Emerge? Previous work identified a specific signal necessary for getting these fly egg cells to move; the problem is that this signal is “graded.” Like drops of ink spreading out on wet paper, this signal travels in between surrounding cells, gradually fading away as it moves outwards. But clear lines are required for pattern formation — there is no grey area between a zebra’s black and white stripes, between heart and liver cells and, in this case, between migrating cells and those that stay put. How are graded signals converted to a clear move or stay signal? By examining flies containing mutations in different genes, the researchers discovered that one gene in particular, called apontic, is important for converting a graded signal.
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POPSHow to save a wet cell phone I could have used this bit of info last year. Hopefully this will save some of you from having busted cell phones. Gotta wonder who first did this to find out that it worked.
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POPSWater-- the background of life "We previously thought proteins would affect only those water molecules directly stuck to them," Gruebele said. "Now we know proteins will affect a volume of water comparable to their own. That's pretty amazing." i find this description of water sexy :0
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POPSQuotations about Life Forgive, O Lord, my little jokes on Thee, And I'll forgive Thy great big one on me. ~ Robert Frost Lots more at the source.
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POPSDog gives up life to save man from fire The Storm woke Bryan Smith, when there was a fire, and Smith got out, but the Storm didn't make.it. Smith was pulled back by the Firemen, because he wanted to go back in and find Storm. He said " I know it was stupid, but people with pets will understand "
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POPS"Why I Am An Abortion Doctor" "I can take a woman, in the biggest trouble she has ever experienced in her life, and by performing a five-minute operation, in comfort and dignity, I can give her back her life"
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