by Larry Niven
(Original Review, 1980-08-26)A short analysis of the (in)stability of a Ringworld (digging deeper into the Math):Let the Ringworld have radius r, mass m, and mass/length p. Let the parent sun have mass M. Put the center of the Ringworld at the origin, with the axis of rotation along the z-axis. Now,...
(Original Review, 1980-12-20)Reading some people's complaints about unpleasant events in SF (e.g. Louis Wu becoming a wirehead in "The Ringworld Engineers") reminded me of an article in Analog some time back. It was written by a founder of a company that would keep you in cryogenic storage until a c...
(2013 was turning into a stale year for SF. That summer, I really needed the solace of good, hard SF to escape, if just fleetingly, some harsh realities, same reality having given me long days and nights to read and listen. So, without really making a decision to do so but compelled by circumstanc...
1. Some Non-Trivial CalculusAs the MIT students sang back in 1971:Oh, the Ringworld is unstablethe Ringworld is unstabledid the best that they were ableand it's good enough for me!People who want the details should check out Non-Linear Dynamics of Ringworld Systems, by Colin McInnes (http://testserv...
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