Heres how deep humans have dug underground in the past 100 years 11,811 views 6 years ago 2 minutes, 54 seconds Uploaded by XKCD|Наука Related videos 68:24 1:00 0:30 1:24 0:40 1:00 0:15 1:48 1:26 0:42 4:17 1:46 0:54 0:28 0:37 1:00 1:00 0:54 0:58 2:07 0:11 2:22 1:05 1:06 1:33 1:42 0:54 0:59 1:39 0:20 0:10 0:15 0:14 0:10 0:20 8:44 1:30 43:26 43:29 11:45 12:46 15:09 7:27 7:29 7:21 4:18 17:47 7:40
