Comment by xhkkffbf
I understand the appeal of using the same combinations everywhere, but I thought the great thing about the metric system was that it was easy to convert. So 8000 m/s is 8 km/s.
I understand the appeal of using the same combinations everywhere, but I thought the great thing about the metric system was that it was easy to convert. So 8000 m/s is 8 km/s.
In the official BIPM brochure, hours are technically classified as "Non-SI units accepted for use with SI." This puts them in the same category as liters, hectares, tonnes, decibels, etc.
https://en.wikipedia.org/wiki/Non-SI_units_mentioned_in_the_...
I can read Wikipedia too. All the calculations are done in m, s, g, etc. if you want to dumb it down to the public you might as well go in miles per hour, leagues per day, etc., spaceflight is not the place where it is appropriate.
> spaceflight is not the place where it is appropriate.
But, a video stream meant for the public consumption is. SI are standardized for the context of calculations, not necessarily for human consumption, which happens to be why nobody gives the weather in degrees kelvin.
>I can read Wikipedia too.
Presumably you can also read the official BIPM SI Brochure. As mentioned, it will tell you the same thing:
https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-...
>if you want to dumb it down to the public you might as well go in miles per hour, leagues per day, etc., spaceflight is not the place where it is appropriate.
2. When you ask the regular units police (BIPM), their official decision is that hours are "accepted."
I trust you can read the dictionary definition of "accepted" all on your own.
Well, at least they didn't do knots, that's progress I guess :)
The problem is with the "hours" part. Which, not accidentally, is not even part of the SI.