On Sun, Jan 15, 2012 at 3:54 PM, Evgenii Rudnyi <use...@rudnyi.ru> wrote:
" Some physicists say that information is related to the entropy" > That is incorrect, ALL physicists say that information is related to entropy. There are quite a number of definitions of entropy, one I like, although not as rigorous as some it does convey the basic idea: entropy is a measure of the number of ways the microscopic structure of something can be changed without changing the macroscopic properties. Thus, the living human body has very low entropy because there are relatively few changes that could be made in it without a drastic change in macroscopic properties, like being dead; a bucket of water has a much higher entropy because there are lots of ways you could change the microscopic position of all those water molecules and it would still look like a bucket of water; cool the water and form ice and you have less entropy because the molecules line up into a orderly lattice so there are fewer changes you could make. The ultimate in high entropy objects is a Black Hole because whatever is inside one on the outside any Black Hole can be completely described with just 3 numbers, its mass, spin and electrical charge. John K Clark -- You received this message because you are subscribed to the Google Groups "Everything List" group. To post to this group, send email to email@example.com. To unsubscribe from this group, send email to everything-list+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/everything-list?hl=en.