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- Comment on hulk smash 1 month ago:
You actually get payed to get a phd. Not a lot, and in fact most phd programs likely don’t pay you enough to live, but you shouldn’t be paying the university. Any phd program that requires you to pay is a scam.
- Comment on Anon goes to the gym 1 month ago:
I find the militaries obsession with push ups kind of baffling. It’s a fine exercise, but you quickly run into diminishing returns just doing loads of push ups. There’s no progressive overload, so eventually doing more just becomes fatiguing rather than productive for muscle growth or strength gain. They must know that at this point, so why would they still make people do so many push ups?
- Comment on Larian Started Work on Baldur's Gate 3 DLC, Then Canceled It: "The Studio Was Elated" 3 months ago:
The many flaws of d&d is why I strongly prefer gurps.
- Comment on Steam keeps on winning 5 months ago:
Yo ho yo ho a repeat of history for me.
- Comment on For the homies 6 months ago:
Thanks. I made it myself.
- Comment on 1.1 History 6 months ago:
You can’t feel gravity. What we feel really is acceleration, the acceleration of the earth pushing us up against gravity.
- Comment on Prehistoric shitposting 7 months ago:
Necessity is the mother of invention. One day somebody was just that hungry, a cassava plant was available, experimentation ensues, bam staple crop. It’s not that huge of a leap though. Most societies have some kind of root or tuber food, and once you’ve got the idea that roots and tubers can be food it’s not a huge stretch to go looking for others. Pretty much all of them have to be cooked at least to be edible and palatable.
- Comment on Choose wisely! 7 months ago:
We can make some estimates for what would happen. The specific enthalpy (basically energy per kilogram) of air, modeled as a diatomic ideal gas, would be 7/2RsT, where Rs is the specific gas constant of air and T is the temperature. The specific gas constant of air is 287.05 J/(kg K), so at 293.15 Kelvin (20 C, ~70 F) the air would have 294kJ per kilogram. An average human displaces about 0.06522 cubic meters (65.22 Liters, 17.2 gallons), and air at standard conditions has a density of 1.20 kg/m^3, meaning you displace about 0.078 kg. This means an average person teleporting would create an energy difference of about 23kJ between the vacuum they leave behind and the surrounding air. That’s as much energy as a 1kg mass moving at 214 m/s (478 mph, 770 kph) or about Mach 0.62 at sea level, or a 1000 kg mass moving at 6.78 m/s (15 mph, 24.4 kph). So imagine getting crushed against a wall by Grandma driving a small sedan at a human running speed, except the wall doesn’t take any of it. That is also a bit more energy than a .50 BMG bullet, which apparently is used to shoot down helicopters.
If you teleport really close to your starting position, we can assume the total energy would be doubled. Also consider that this analysis is conservative. The faster the teleportation happens the more energy you’re going to release. This only accounted for the energy of the air itself, not the kinetic energy of all the air that would rush in to fill the vacuum, or the energy you add to the air when you pop back in, which could be significantly more if you pop back in really fast. So it could be quite a bit of energy. I always imagined that a superhero or villain that could teleport would need some kind of force field just to survive the process, and that they could develop their ability to teleport faster to use it as a weapon, or teleport slower for stealth and not destroying their destination. Looking back at Jumper the amount of damage they do when they teleport is pretty minor, considering the math. The energy released would only grow if you could take stuff with you.
- Comment on Choose wisely! 7 months ago:
Conservation is a law of nature, making it natural to assume it would still hold even with a hypothetical power. But you do you. It’s ok to be wrong sometimes.
- Comment on Choose wisely! 7 months ago:
I agree with your choices but your logic for the teleportation doesn’t hold up. You’ve assumed your momentum wouldn’t be conserved through the teleportation in a weird way. Assuming momentum is conserved, you would still fall just as quickly. In fact, you would reach terminal velocity in short order, and would have to continually teleport to keep yourself from crashing into the ground. By itself that would be bad enough, but you moving through the air between teleports would cause the air to move as well, so assuming you could keep up and hold your elevation, your velocity relative to the ground would increase to some number higher than terminal velocity. Think Chell continually falling through portals. Now you’re stuck unless you can also teleport slightly to the side without falling. Best case you go to one of those indoor skydiving places and get in so you can slow down without dying. I was going to explore what would happen if your momentum somehow wasn’t conserved, but that would imply some absolute fixed frame of reference or magical mumbo jumbo, neither of which exist.
You could totally travel faster though, without even needing to walk. You would also be super dangerous in one on one combat sports. A well placed 7 inch teleportation can easily get the win in the right sports.
- Comment on StarCraft could return, according to Blizzard president, but not necessarily as an RTS 7 months ago:
I doubt they could at this point. With how much time has passed since Blizzard was any good, the people and culture that produced their best stuff are gone. It’s more like a company of theseus now, it’s name being the only vestige of what once was.
- Comment on Wreck the economy because it only works for the billionaire class. 9 months ago:
“Smaller” if you’re a billionaire. When they say “the economy” just insert “rich people’s wealth”. It wouldn’t be a smaller economy in reality, because what drives a healthy economy is people spending money. Rich people don’t spend money, regular people do. Regular people getting paid more and having a larger piece of the pie, counterintuitively means there’s more pie.
- Submitted 9 months ago to [deleted] | 23 comments