Eratosthenes used this phenomena to measure the diameter of the earth long ago (according to Carl Sagan: Cosmos.) One of the best examples I know of using what you have to do something really interesting.
They're both named after the animal "crab" in Latin (a constellation that people thought looked like a crab, and a disease that people thought looked like a crab).
I guess people's faces would have shadows from their forehead and nose, so maybe not actually useful for that. I presume overcast days with no defined shadows would work best for this.
You're assuming that shooting day-for-night means using no additional lighting, which would be an incorrect assumption. You just need big lights to overpower the sun which isn't nearly as hard as it might sound at first. They do it all the time.
I visited southern Mexico in June once. As I stepped out of the airport building I felt oddly disoriented. Was it the sudden heat, or bright sun, or just an effect of travel itself? I eventually realized the reason while staring absentmindedly at a parking bollard -- no shadows!
Coming from northern latitudes I'd never experienced this before. Like other commenters mentioned, it reminded me of being in an old video game.
15 comments
[ 3.7 ms ] story [ 43.1 ms ] threadWhat a fantastic community to have suffered such a disaster recently, really hope everyone there can mourn and get back on their feet again soon.
Different places and cultures have different names for things. That's just how the world works.
Coming from northern latitudes I'd never experienced this before. Like other commenters mentioned, it reminded me of being in an old video game.