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Apr 26, 2018 at 1:59 comment added Hot Licks I recall, back around 1966, a college prof who liked to approximate it as pi * 10**7.
Apr 24, 2018 at 19:21 history protected Qmechanic
Apr 24, 2018 at 18:55 answer added user59991 timeline score: 15
Apr 24, 2018 at 16:16 vote accept RocketTwitch
Apr 24, 2018 at 15:00 answer added Edgar Bonet timeline score: 14
Apr 24, 2018 at 12:35 comment added Bert Barrois Your question switched from years to days. The difference between sidereal and solar days is about 1/365.25, but the difference between sidereal and tropical years is about 4e-5, or 1/26000, and the reason for the difference is unrelated.
Apr 24, 2018 at 10:00 history edited Qmechanic
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Apr 24, 2018 at 9:09 comment added PlasmaHH For most of the cases the error in determining the halflife on big year scales is bigger than the one you introduce by using "the wrong" year length to calculate it back.
Apr 24, 2018 at 7:46 comment added jpmc26 How big is your error?
Apr 24, 2018 at 7:13 history tweeted twitter.com/StackPhysics/status/988677344318623744
Apr 24, 2018 at 7:07 comment added Eric Duminil This reminds me of a joke : Some tourists visit the great pyramids in Giza. The guide tells them that the pyramids are 4504.5 years old. Tourists are impressed by this precision, and ask the guide how it was calculated : "That's very simple, I've been working for 4 and a half years here, and the pyramids were 4500 years old when I started".
Apr 24, 2018 at 4:11 answer added Chris timeline score: 75
Apr 24, 2018 at 3:43 vote accept RocketTwitch
Apr 24, 2018 at 16:16
Apr 24, 2018 at 3:30 history edited RocketTwitch CC BY-SA 3.0
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Apr 24, 2018 at 3:30 answer added user189728 timeline score: 19
Apr 24, 2018 at 3:26 history asked RocketTwitch CC BY-SA 3.0