B Flat Black Hole
Using the Chandra X-Ray Observatory, astronomers have found for the first time, sound waves froma supermassive black hole. The black hole in question, is in the Perseus cluster of galaxies, about 250 million light years from Earth. The sound the black hole makes translates to the bote B flat, but the note is 57 octaves lower than the middle C -- making it impossible for the human ear to hear it. This has some significance, as astronomers have long wondered why gas in galaxy clusters don't cool -- cooling gas would allow star formation, as it would allow gravity to exert its influence -- however, gas in galaxy clusters remain hot. Sound waves from black holes may be the mechanism keeping the gas hot.
The first chef
First came fire ... and then, as the camera shifts to the soon to be late-village idiot, you're left wondering -- just what was going through that mind -- and food is put on the fire, for the first time, and cooking is accidentally discovered by humanity. The first chef is ridiculed by grunts, then the local thug tries a sample of the burnt carcass, and soon, everybody gets queued at the McDonalds drive-thru. What happened? Richard Wrangham of Harvard believes there's more to cooking than evolutionary history would have you believe. Wrangham points out that there is no way homo sapiens could survive on just raw food. Raw food just doesn't give up calories as easily as cooked food -- and raw food makes the digestive system expend more energy to get at those calories. Cooking on the other hand breaks complex molecules down, allowing the digestive system to make easy work of them -- and cooking also softens food, allowing the body to get to the calories with less effort...
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