Shadows
I had a lot of driving to do this last week. 1 For work I drove about 11 hours total on two separate days combined. Then, on Friday, I drove another 4 hours or so to visit some friends. Thankfully, driving back Saturday was only 3 hours.
Driving back at around dusk on Saturday meant lots of glare, lots of long shadows. And then it struck me… There must come a point when the Earth rotates relative to the Sun such that an object on the surface of the earth could cast an infinitely long shadow. And, really, this should happen twice a day.
Now I think I have a new mission. I need to find someplace on our planet to stand such that either at sunset or sunrise I would cast an infinitely long shadow.