Footfall by Larry Niven5/7/2023 ![]() ![]() Tech news articles related to works by Larry Niven (w/J. Achievable accuracy has been estimated at ten to twenty feet CEP (circular error of probability).Ĭomment/Join this discussion ( 0 ) | RSS/XML | Blog This |Īnd Technology by Larry Niven (w/J. Thor will impact a target area at about 12,000 feet per second that is sufficient kinetic energy to destroy most hard targets, with minimum collateral damage and of course no fall-out. ![]() It requires a GPS receiver to locate itself a means of taking it out of orbit an atmospheric guidance system, such as a means of changing its center of gravity (moving weights, small fins, etc.), and a communication system to give it a target and activate the system. The basic weapon system consists of an orbiting element some 20 to 40 feet long. Pournelle described a weapons system like this in 1964 he published a more complete description in 1975. When it sees a tank silhouette, it steers toward it." It has a simple brain, just smart enough to recognize what a tank looks like from overhead. The aliens land, determined to conquer or utterly eliminate the human race. To use it, call it down from orbit, aimed at the area you're working on. A giant rock, the footfall, is launched towards Earth, causing even more damage. Give it a rudimentary sensor, and a steerable vane for guidance. "Project Thor was recommended by a strategy analysis group back in the eighties," Curtis said. ![]() ![]() I think human beings have always known that you have a special ally when you are fighting people who are below you. ![]()
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