Viewing a single comment thread. View all comments

ForbiddenJello t1_j4vrrpw wrote on January 18, 2023 at 4:36 PM

Reply to comment by The206Uber in TIL about SubTropolis, a giant former limestone mine under Kansas City that was converted into the world’s largest underground business complex. The 1,100-acre complex is accessed through tunnels, and as of 2015, 1,600 people worked there. by corn_dog_22

Interesting! I didn't know trucks had APU's

The206Uber t1_j4yb69g wrote on January 19, 2023 at 2:39 AM

Some do, anyway. It saves wear and tear on the big diesel and pollutes less. IMHO pretty sensible addition to a truck.