this post was submitted on 21 Oct 2023
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[–] shootwhatsmyname@lemm.ee 27 points 1 year ago (3 children)
[–] maryjayjay@lemmy.world 62 points 1 year ago (1 children)

Internal calculations were are all done in metric, but converted to traditional US units because many of the astronauts were pilots and more used to them

[–] Vilian@lemmy.ca 21 points 1 year ago (1 children)

imperial system is based on metric(on wikipedia) so they calculed on metric, converted to imperial, that is basically metric but worse

[–] Pipoca@lemmy.world 17 points 1 year ago (1 children)

Kinda sorta not really.

One problem with units is defining them precisely.

For example, a meter is ostensibly "one ten-millionth of the distance from the equator to the North Pole along a great circle". That's not exactly precisely defined because the earth isn't a perfect sphere.

So currently, a meter is defined to be the distance light travels in a vacuum in 9192631770 / 299,792,458 hyperfine structure transitions of caesium-133.

Rather than doing the same sort of thing with updating the standard definition of a foot or pound, the US just piggybacked off the work precisely defining metric units and defined imperial in terms of metric.

So now a foot is officially the precise distance light travels in some number of hyperfine structure transitions of caesium-133, and the US government didn't need to do a thing.

[–] Peppycito@sh.itjust.works 2 points 1 year ago

If only they made a meter equal a yard. I'm okay with a bigger yard.

[–] BloodSlut@lemmy.world 9 points 1 year ago
[–] ForestOrca@kbin.social 8 points 1 year ago (1 children)
[–] lugal@lemmy.ml 9 points 1 year ago (1 children)

That's not helpful. We all know what the apollo program was but where in the article does it talk about the system of measurement?

[–] ForestOrca@kbin.social 8 points 1 year ago (1 children)

LoL, @shootwhatsmyname sounded like they might want something to read while they were waiting. Have you found it yet, @lugal?

[–] lugal@lemmy.ml 5 points 1 year ago

Sorry, I misread your comment. I didn't but someone else answered the comment