Subject / Started by
Size/distance of Sun

Started by dichotomy « 1 2 3 ... 5 »

moonlighting

Started by David71

Earths Curvature and spin effect on long range ballistics.

Started by Curiosity File « 1 2 3 ... 6 »

Distance to the Moon?

Started by Curiosity File

Tidal Bores

Started by crwilson12

HAARP

Started by crutonius