TIL

37 thoughts
last posted Jan. 23, 2018, 10:28 a.m.

30 earlier thoughts

0

TIL about the Turpan hydraulic engineering. I found it especially interesting, because just behind my house is one of our local (above-ground) canals, conducting glacial melt from the alpine valleys above to the grapes and apricots growing below.

6 later thoughts