Sterling W. wrote:
<<(Truth is, meteoritic iron, tough as it is, is often quite brittle. Remember, inside it's only 50-100 deg K when it hits, so maybe no big chunks.) Even if it was "only" a ton or two, it would be worth looking for, obviously>> Hola Sterling, That temperature quoted probably would have the metal a tad more brittle. However your temperature expressed in absolute Kelvin degrees corresponds to about 200 degrees below zero centigrade (and a lot more degrees below zero Farenheit) I don't mean to rehash this too much, but, no, a large meteoritic iron comes in at the boiling temperature of water and is actually 273 - over 300 degrees centigrade hotter than you say and certainly not brittle as you indicate. Earth is not magically a comfortable 25 degrees C either, but that's another story. Plenty of arguments for what happen in the upper atmosphere regarding heating and cooling from terrestrial atmospheric sources, but that 50 - 100 K perpetuates misinformation where we have been and done that before, time to move on Saludos, Doug ______________________________________________ Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
