This question has already been answered by me, earlier today. Why is it being asked again?
Here is that answer:
The "Fermi," whose size is 10^(-13) cms or 10^(-15) metres.
Fermi was a very versatile, famous, much admired and loved Italian physicist. He named the neutrino ("The little neutral one"). He escaped fascism to come to the U.S. with his family in 1938 in a most dramatic and memorable way, stopping off in Stockholm to pick up his Nobel Prize!
Fermi was unusual, perhaps unique, in having talents as both an experimental and as a theoretical physicist. He was actually present in Chicago at the first experiments there (the first "atomic pile") that ultimately led to the development of the atomic bomb.
The fermi (written as it's usually seen) is defined as the above length because that's about the size of protons and neutrons. Atomic nuclei, made up of tightly packed nuclei, are also a few fermis in size. (That's about 10^(-5) the size of the electron cloud surrounding atomic nuclei, showing how empty the typical atom is.)
Tragically, Fermi died at the relatively young age of 53 in 1954. His wife Laura published a very readable memoir, "Atoms in the family" in that same year (U. of Chicago Press). (I have it on my shelves.) It's great reading for any aspiring young physicist.
Fermi's own published notes on thermodynamics and statistical mechanics (reproductions of his handwritten lecture notes) were published and prized by many physicists for decades in the second half of the 20th century. The older generation with whom I studied or worked, including another Nobel Prize winner, all had this in their offices. In addition to containing some unique insights and derivations, they gave insight into the workings of a great mind.
Fermi may be long gone, but he is certainly not forgotten.
Live long and prosper.
2006-12-14 15:16:19
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answer #1
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answered by Dr Spock 6
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the answer is Enrico Fermi and the measurment is just called FERMI. Hope it helps :)
2006-12-14 15:24:55
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answer #5
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answered by Jamie F 1
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