Meldrik@lemmy.wtfM to TerrifyingAsFuck@lemmy.wtf · 12 days agoHow deep is that cave?!lemmy.wtfvideomessage-square10fedilinkarrow-up167arrow-down12
arrow-up165arrow-down1videoHow deep is that cave?!lemmy.wtfMeldrik@lemmy.wtfM to TerrifyingAsFuck@lemmy.wtf · 12 days agomessage-square10fedilink
minus-squareCarvex@lemmy.worldlinkfedilinkarrow-up23·11 days agoNerdier math puts the 14 second total time as 12s falling and 2s sound returning, for a depth of 700m. Your napkin was fairly close!
Nerdier math puts the 14 second total time as 12s falling and 2s sound returning, for a depth of 700m. Your napkin was fairly close!