How do you waste the most time every day?

Lately, with this oppressive heat that I cannot be out in the TV has been a timesuck, but I do also look at a lot of articles online to keep the gray matter going. At least it serves a purpose. I pick random, interesting (to me) things or just stuff that strikes a curiosity I may have never had.

Just today I watched a short engineering video about the science behind trains and how they move down the rails. I have always liked trains, but the wheels and tracks are shaped certain ways or it would snot work; it is not as simple as it appears.

There are always new things to learn so why not?