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Science  21 Dec 2001:
Vol. 294, Issue 5551, pp. 2435
DOI: 10.1126/science.294.5551.2435b

In an epic snafu, the controllers of the Mars Climate Orbiter failed to convert English units of force into metric ones, one of several mistakes that sent NASA's $87 million spacecraft into oblivion 2 years ago (Science, 8 October 1999, p. 207). Don't let your work go down in flames. This handy site performs conversions faster than St. Paul. From parsecs to hogsheads, the calculator handles some 5000 units of length, temperature, weight, speed, volume, time, power, and other measures. You can change metric to metric, English to metric, and for that retro thrill, metric to English.

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