01:0801:08, 9 June 2024diffhist−5
Big Bear Lake
→History: rm spurious text that may have been an attempt to include a cite. The text and "(12)" were added by Mythman+309 at 01:13, 17 November 2013
17:4317:43, 14 May 2024diffhist+12
Attosecond
→Common measurements: It's not exactly 24 integral attoseconds. The cited source defines the unit as 2.418 884 326 5864 x 10-17 with an uncertainty of 0.000 000 000 0026 e-17, or about 24.188843265864... attosecondscurrent
22:2322:23, 27 February 2024diffhist−69
IM-1
→Lunar landing: Success is disputed and so needs better sources. Nearly all space missions use cryogenic fuel and so it's unlikely this was somehow the first plus the cryogenic claim was not supported by the source provided