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by azernik 2566 days ago
And even then it's only the American public; NASA development is in metric.

(Part of the Mars orbiter fiasco was that it was being developed during the transition.)

1 comments

Not really. The problem with the Mars lander (not orbiter, it was a lander that crashed) was that they got some data from a defense contractor (Lockheed Martin I think) which was in imperial units, and then NASA assumed it to be in metric units. Both sides made a stupid mistake here: the contractor didn't even provide any units at all on the data sheet they provided, and NASA didn't bother to ask, and just assumed some units. IIRC, these weren't some simple 1-dimensional unit like meters or liters, they were some compound unit (like lb-ft/N-m), so it was a stupid mistake, because even if you have metric units, you don't know if, for instance, there's some prefix, such as kilograms instead of grams, kiloNewton-meters instead of N-m, etc. It was really unbelievable IMO that they just took a bunch of bare numbers and assumed them to have some units associated.