CLOCKS

(See also Radioactive Dating; Time)

age of universe: g69 11/8 29

atomic: g61 5/22 29

U.S. timekeeping standard: g85 8/8 30

bees’ internal clock: g70 10/22 15

Big Ben: g78 7/8 24; g38 4/20 27

creation: ce 155; w72 291-293; g71 7/8 13-15

discussion: g78 7/8 25-26; g70 7/8 16-19; g51 12/22 9-11

“doomsday clock”: su 183; g84 3/22 29; g84 10/22 3; g81 6/8 23; g79 7/22 20

history: g85 8/22 25-26; g70 7/8 16-17; g61 1/8 24-25

humans’ inner: g71 2/22 30

bone-marrow stem cells: g85 11/22 29

hydrogen maser clock: g80 1/22 29

leap second: g72 8/8 29

prayer clocks: g84 11/8 30

radioactive: ce 96-98; g79 4/22 29-30; g72 4/8 5-20; g71 4/8 31; g71 5/8 31

rare: g69 11/22 31

that stop at the exact time of their owners’ death: g82 10/22 21-23