pne: A picture of a plush toy, halfway between a duck and a platypus, with a green body and a yellow bill and feet. (Default)
Philip Newton ([personal profile] pne) wrote2003-01-21 12:45 pm
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Planck units

*snicker* Just found this page on Everything2 to do with "Planck units".

Why use kilograms? Why pounds? They're all pretty arbitrarily defined. But some constants are given (e.g. the speed of light in a vacuum, the gravitational constant "big-gee", etc.) so one could derive "logical" units from those.

Their order of magnitude may not be very useful without scaling them up or down, but ... well, read the write-up.
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[identity profile] timwi.livejournal.com 2003-01-21 11:22 am (UTC)(link)
For some reason, even some of the arbitrarily chosen units seem to have unuseful orders of magnitude, which is why we most common talk about a decibel or a millirem...

Unfortunately, I can't seem to connect to this server (www.everything2.com). If I remove the 2, I get a 404.
ext_78: A picture of a plush animal. It looks a bit like a cross between a duck and a platypus. (Default)

[identity profile] pne.livejournal.com 2003-01-21 12:11 pm (UTC)(link)
True, or picofarads.

And yes, it is www.everything2.com, and it works for me right now... strange.

[identity profile] timwi.livejournal.com 2003-01-21 12:24 pm (UTC)(link)
The link works for me now.
ext_78: A picture of a plush animal. It looks a bit like a cross between a duck and a platypus. (Default)

[identity profile] pne.livejournal.com 2003-01-21 12:14 pm (UTC)(link)
By the way, some people are also fond of the furlong-firkin-fortnight system of measurements :)

(And there's the saying that Pi seconds are a nanocentury, which is fairly close... and one professor supposedly gave the average length of his lectures as a microcentury -- i.e., about 53 minutes.)
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