kersploosh
- 236 Posts
- 677 Comments
5·24 hours agoCool video. Doing the double-slit experiment in my freshman physics class is a favorite memory from college. Seeing it in person blew everyone’s minds, even the kids who had learned about the experiment before.
If you google “is energy conserved in the double-slit experiment” you’ll find some physics forums with decent answers. Basically, the total energy emitted by the light source does not change. Energy is conserved. Don’t think of the laser light as a discrete beam that is being split off onto a second path. Instead, imagine that the laser light is constantly shining all over that foil and card. The dark regions appear dark because the light waves there are canceled out by interference from adjacent light waves. Similarly, the red areas are illuminated because in those areas the adjacent waves did not cancel each other out. The bright spots visible on the polarized foil occur because the polarizer blocks thin regions of the light, preventing them from canceling out adjacent light that wasn’t blocked. So light wasn’t redirected there, but was always there and was simply made visible to us by the effect of the polarizer.
Light, quantum mechanics, and the probabilistic nature of the universe are all real head trips. I still struggle to wrap my mind around them. As such, there’s a good chance my simplistic paragraph above is incorrect or misleading, so take my answer with a grain of salt.
36·2 days agoI ate the onion for a second there.
God damn, we are in the worst timeline.
2·3 days agoDon’t give them ideas.
Careful, that’s how that one evil boyfriend in Scott Pilgrim died.
0·6 days agoAre any boats out on that water? If so, they had better be careful. You are armed with a torpedo!
0·7 days agoWhat is something from France that you wish you could get in the US?
I bet she has a ΜΟΛΩΝ ΛΑΒΕ decal on her chariot, too.
I was thinking of central heat and air conditioning accessible to the masses for home use. But you are right that the history of HVAC goes back much farther than that.
Oh, and salmon sushi was invented in the 1980’s by the Norwegian fishing industry. Before that, no salmon in sushi.
You know how you can push some buttons on your wall and your house magically warms up or cools down? I know people who were alive before that existed.
0·8 days agoI’m with you about fries on pizza.
But fries with shawarma? Sign me up for that. And pile on some extra garlic, too
I got to experience it firsthand a few days ago from me a MAGA relative. “Don’t believe the hysterical media. It’s all a manufactured crisis by the liberals to take advantage of people.”
The ending was fire. 🔥
Relevant quote from St. Basil:
"Who is the covetous man? One for whom plenty is not enough. Who is the defrauder? One who takes away what belongs to everyone. And are not you covetous, are you not a defrauder, when you keep for private use what you were given for distribution? When some one strips a man of his clothes we call him a thief. And one who might clothe the naked and does not—should not he be given the same name?
The bread in your hoard belongs to the hungry; the cloak in your wardrobe belongs to the naked; the shoes you let rot belong to the barefoot; the money in your vaults belongs to the destitute. All you might help and do not—to all these you are doing wrong"
Oh man, I haven’t though about College Humor in 20 years.
Oh no Dad’s doing the dishes again KIDS GET OUT OF THE HOUSE
At this point I have to admit that I am out of my depth. We need a real physics major to chime in.