COMPASS

(See also Navigation)

bacteria with built-in: g80 5/22 24

bees use solar compass: g60 11/8 23

discussion: ad 368; g61 11/22 20-23

examples in creation: ce 155-156

gyrocompass on nuclear submarine: g59 1/22 21-22

how to use watch as a: g32 6/22 598-600

invented by Chinese: g64 4/8 25

prayer compass: g82 12/8 30