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Comment Let me count... (Score 4, Funny) 301 301

one USB port for connecting the USB -> RS232 adapter for the mouse
one USB port for connecting the USB -> Centronics adapter for my dot matrix printer
one USB port for connecting the USB -> PS/2 adapter for my keyboard
one USB port for connecting the USB -> RS232 adapter for my BELL103 modem
Call me old fashioned (and it wouldn't be the first time), but I just need four USB ports.

Comment Not new, but new insight in our solar system! (Score 1) 69 69

The problem of orbit stability in a central gravitational potential field is quite old, and probably began just after Newton discovered the universal gravitation law. The KAM (Kolmogorov, Arnold, Moser) theorem gave a workable approximate solution to the problem. The prediction of KAM theorem is that orbitating bodies whose orbit period ratio is irrational remain stable, while orbits whose revolution rate is of the type m/n (m, n integers) are swept away. This for example explains the "holes" in the asteroid belt between Mars and Jupiter. The paper referred by Slashdot gives a beautiful simulation result of a very complex problem of mathematical physics, however we should also remember that the authors of the KAM theorem obtained the solution using nothing but pencil and paper about fifty years ago...It is however wonderful to see how modern simulation and visualization methods can give new insight to old ideas!

Fools ignore complexity. Pragmatists suffer it. Some can avoid it. Geniuses remove it. -- Perlis's Programming Proverb #58, SIGPLAN Notices, Sept. 1982