gfish: (Default)
gfish ([personal profile] gfish) wrote2006-09-15 07:40 pm

slightly eccentric

I just measured with a micrometer, and my wedding ring has developed an eccentricity of 0.3303 (24.4mm x 23.03mm). Which is rather odd, because I always take it off when I'm doing the kind of things that would tend to crush small loops of soft metal.

[identity profile] neuro42.livejournal.com 2006-09-16 06:10 am (UTC)(link)
eccentricity is unitless and equal to sqrt(1-b^2/a^2), not a-b (where a is the semimajor axis and b is the semiminor axis).

[identity profile] tnarg42.livejournal.com 2006-09-17 03:50 pm (UTC)(link)
Proving once again that I am clearly a moron at 1:35 AM.

[identity profile] neuro42.livejournal.com 2006-09-17 04:49 pm (UTC)(link)
Yes, but how eccentric are you? Inquiring minds want to know.

[identity profile] tnarg42.livejournal.com 2006-09-17 05:13 pm (UTC)(link)
Apparently, not very. Only 0.05934. Now, I would call that less than one order of magnitude less eccentric, but I'm sure I'll get corrected on *that* too... (To be precise, 0.7455 orders of magnitude less eccentric than fish, but since orders of magnitude are typically integers, one whole order of magnitude less.)