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Everything posted by PantsForSquares
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You actually can't conserve linear momentum in physics. Energy can neither be created nor destroyed, which results in kinetic energy being conserved (minus changes in air resistance). Linear momentum being conserved is only true of perfectly elastic collisions, and isn't as strict of a restriction as conservation of energy. Let's say that a Iron Ferring of initial mass M is moving at some velocity V. He then stores mass to reach M/2. To solve for his new velocity, you can't use momentum. You have to use energy to figure out that his initial kinetic energy is going to be (MV^2)/2. If we neglect air resistance, that has to equal his kinetic energy at the moment of his change in mass. When you solve for it, you find his new velocity to be equal to V√2, or approximately 140% of his original velocity. For a 50% decrease in mass, he gets a 40% increase in velocity. At low velocities, and without precise measurements, it looks to be a fairly linear relationship, but it isn't. Now, if you compare his momenta, you end up with MV vs. (√2)/2*MV. There's about a 30% decrease in overall momentum here, which isn't going to be super observable at relatively low velocities. In general, an Iron Ferring will lose momentum when he stores mass, and gains momentum when he taps mass. The fun part, though, comes from conservation of angular momentum. If an Iron Ferring is spinning, and he stores mass, he should start spinning faster. I'm not sure why Brandon wrote that momentum is conserved, so if someone could clarify that with him, it would be great.
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Eh, looks like this question was a bit rough. I'll post another question. Here's the settlements I would have counted: Jericho, Byblos, Catal Huyuk, Mallaha, Abu Hureyra, Harappa, Mohenjo-daro, Erlitau (technically extends into Chalcolithic, but it's the only major Chinese settlement of the Neolithic), Eridu, Ur, Uruk. WLIU: Name 5 X-Men that have not been featured in the movies.
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I'd recommend just investing in a cord wrapping loop, or using three or more zip ties/velcro straps. I use four velcro straps to loop each of my guitar cables, and I was able to tie a 12' cable up fairly well. You have to somewhat weave the strap in order to not have it move as much, but with four, it's pretty much nonexistant.
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It's actually "duct" tape, as in it's used for air ducts. Duck Tape is just a brand that sells duct tape.
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Cats
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Having a Bad Day?: Get 'yer Hugs here!!
PantsForSquares replied to Curious Anamaximder's topic in General Discussion
Yes, yes it does -
Having a Bad Day?: Get 'yer Hugs here!!
PantsForSquares replied to Curious Anamaximder's topic in General Discussion
I just finished an exam for my chemical engineering class and I have a math exam in 12 hours. someone end my suffering -
Random Stuff IX: Rogue Admins
PantsForSquares replied to Delightful's topic in Forum Games & Random Stuff
Next Cosmere magic system confirmed. -
Butchers
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Random Stuff IX: Rogue Admins
PantsForSquares replied to Delightful's topic in Forum Games & Random Stuff
We used this because my friends and I didn't want to die of alcohol poisoning. -
Do you mean a piccolo? And no, the cookies are not suspicious. They might Ruin your appetite, but that's about it.
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Random Stuff IX: Rogue Admins
PantsForSquares replied to Delightful's topic in Forum Games & Random Stuff
It's bad enough that I had to quit playing a drinking game with it after about half an hour, and I still have a hangover from it. -
Weird things about yourself
PantsForSquares replied to Assassin in Burgundy's topic in General Discussion
If it's just a stud, exploiting it in a fight isn't what I'd do. There's more vulnerable parts (solar plexus, nose, eyes) that are much easier to hit than trying to exploit someone's piercing. Earrings are slightly better, but going for them specifically means you're focusing on that part. Hoops, or other dangly earrings, are really bad in a fight, though.- 169 replies
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- weirdness
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The Chalcolithic is when peeps started using copper, and the Mesolithic is at around the time when people crossed the Bering land bridge into North America.
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The Official Thread of Relationships
PantsForSquares replied to Curious Anamaximder's topic in General Discussion
It's even better in college. High school still requires you to be at school during a given time, and college has a bigger pond, so to speak. I'd be wary about getting into a relationship in middle school. High school is fine, but none of the couples I know have been dating since middle school. A couple of them met in high school, but they either didn't start a relationship then, or they have a really strong relationship. You've got a lot of time to carefully do this, and relationships are a fickle thing. -
theory When Shallan gets red eyes
PantsForSquares replied to Farnsworth's topic in Stormlight Archive
I'm not sure where you're getting the Parshendi ancestry bit from. Horneaters are descended from Parshendi, and also have red hair, but I'm pretty sure that they're not related to people of Veden ethnicity.- 18 replies
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Oh, so that's the actual term used for them? Huh, I think I got this. Moscow and St. Petersburg, IIRC, are the cities that count as federal subjects? I remember reading something about this in my dad's Russian history book. Smolensk, Leningrad and Volgograd oblasts should round out the rest. They're kind of like states, I suppose. Uh... WLIU, name 7 post-Mesolithic, but pre-Chalcolithic settlements.
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Weird things about yourself
PantsForSquares replied to Assassin in Burgundy's topic in General Discussion
Hilariously enough, my ancestral customs require me to get a piercing. I didn't get it done as a baby, and I'm not going to do it myself. Does this make me the anti-LeftVash? The... RightVash, if you will?- 169 replies
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- ive eaten guinea pig
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Random Stuff IX: Rogue Admins
PantsForSquares replied to Delightful's topic in Forum Games & Random Stuff
H̉͐ͣͨ̒̄̿͊ͭ̒͏͞͏̺͚̦̪̣͇̬̩̞̰̦̩̺̦̲̯͚́͟Ẹ̡͖̖̝̯̜͖͛͌̓͌̑́͟͞͝ ̡̡͔̜͎͇͎̥͓̪̳̮̻͙͎̲̬̌ͯ̉̇ͩ͒̊ͫͮͮ͒͋͂̄ͩ͊̒̾̀C̡̙͔̦̘̙͓̿̒͂͂̎͊ͧ̓ͤ̄̉̀͘͠Ò̸̻̙͎̪̞̲̪̘͎̭̹̲̻̺̟̖̭ͨ̋͂̕͟͞͠M̸̨̟͎̯̠̣̺̪̦̙̰͓̻̯̯̰̱̥̗̆ͥ̆ͧ̽̈́̚Ẻ̇̾̈́̈̉̍̓҉҉̣̝͕͇̳̯̠̥̫̥̗͎T̸̢̪̩̬̣̈́̃̽̈́ͭ̀͛͢ͅͅḦ̵͕̜̘̩̠̹͕̥̹́̌ͮ̇̈̒̆͊ͨ̏̕͟͞ ̡̮̼̠͙̭̙͙̥̭͎̥͚̥̂̋́ͧͪ͊ͧ͂̀̕ͅ ͓͖̠̹͚̟̙̮͇̦̝̹͙͍̬̋͗ͣ̽̋̈̃͂̓̄̔̋ͨ͆̈͊͡ͅN̐̓́̽̆͋͢͏̶̮̤͙̜̲̼̗̟̬̝̳͇̹̙̹͞O̡͓̬͎̣̲̳̪͓̟ͧ̆̉̽̎͜Ņ̸͎̟̦̦̙̪̬́ͣͣ̏̓͛͌̇̀͗ͣ͊ͪ̈̚Ë̴̯̠̬̮͇̫̹̙̞̤͈́̒̆̿͆̉̊ͤ͑̀͘͟ ̢̘̻̝̰͔̥̹̹͓̮̫̖̗̰̒ͯ̔̅͊̒͢͞ͅS̵̪̻͉̙̬͎̼͓̠̭͛̂̿̏̂ͯ͡H̛̿̍͌͛̓ͭ̉͏̰̺̩̺̹̘̗Ą̛͕̣̰̼͕͎̮̹̞̳̲̹͔͙̹͚̑̃ͦ̏̒̆ͭ̇̏̉̚̚͜ͅͅL͈͍̯̫̫̻͚̮͙͚̬̓̎ͩ̍̍͟͞L̶̶ͫ͌̊̆ͯ͐̓̈́̓̆͞҉͉̗̻ ̧̰̥͎̯̟̪̬̣̜̼̬̘͗͒̓̔̏͂̾̅̀͠͡Ṣ̤̠̬ͪ̓̈́̂̄͘͠T̷̶̡̧̩͈̟͓̞͇̮̖̻͉̖̟͖̲̙̟̬̂̎̊͐́̊̌̒̈̉ͮ̿ͯ͌̅͡ͅO̥͙̥͖̥͔̥͔͛ͪ͌̿͆́̕͢P̭̦̘̫͉͈̱͕̭͍̦ͭͨ̿̿ͧ̃̈ͫ̓̃ͦͪ̈́̌͜͠ͅ ̢͍̙̹̭̫̬̲̩̪̹̇͒͋̃͗ͭ́̓̓̄̈͗̒̈́͒̐͆ͤ͟T͈̖̝̮͍̲̺͕̲͂̅̔̍̓͂̈́̄̀̚͘̕͝͝Ḩ̸ͨ̎ͯ̽ͬͧͧ̆̈́͛̑ͥ̄́҉̴̖̤̦̣͓̘̼̭Ė͆ͮͯͤ҉̩̗͙̘͚̞̪̭̰̤̦͎̕ ̡̎̏̾ͧ́̍̇̍͛͏̛̰̼̻̜̭͉̦͓̗̘̥̜̗̪̣̳̩̯ͅA̡̛͎͕̮̺̿̌̈̆ͨ̊̈́ͮͦ̊̋́͌͆̀͡ͅS̛͒̿̄̓͂ͭ҉͝͞҉̫̙̺͇͚̠̮͖̯̞̳͍̼C̶̨̛̼̲͎̹̮͙̰͍̳̝͉̼̬̙͎̙̣͑ͦ͆̏̃͢͡E͈̜͉̫͔͕̹͋ͩͤ͂ͬͬͣͦ̄̽̋ͩ͌͊͟͢͡Ņ̶̻̼̣͍̯̦͔̼̃͒̎ͫͣ͞ͅͅSͤͪͧͦ̿͌̋̾̎͢͏̷̨͓̘͔̩͓̖̳̬̦͎̩̠̤͙I̴̹͚̩͇̝͇͓̗̩͇͊̓̈ͧ̕O̶̶̞̼̬̭̼̣̜͈͚̲̲͉ͬ͂ͭͫ̂̒̏̑ͣͯ͌ͤͩ́̋ͩ̚N̗͓͍͎͔͓̫̦͕̗̤̪̤̲̬͕̫̺̆ͭ̅ͥ̆ͥͪ̆̏̎ͨ́͢͝͝ ̨̗͖̲̹̰̥̺͕ͬ͌̍̈ͨ̋ͬ̊ͮͭͦ̄̑ͤͪ̿ͭ̃̚͜O͒ͨͨͨ҉̨̛̲͍̳̼̳̠͎͖̘̦͎͎̱̞̥̖̘̤͢F̶̩̗͇̜̖͙̲̭̖̝̞̗̱͉̫̹̪̮͇ͥͥͩ̀̅̊ͯ͋̈́͑ͮ̋̇ͮ͊̀́̕͡ ̨̙̰̦̠̹̪̱̗̜͔ͩ̍̈́̊́͠͡ͅHͣ̽̍͌͊̿ͯ̇̒҉̡̹͇̘̦͎̤̼̱̼͖̟̤̀̕͜E̢̢͔̙̖͓̠̹̝̹̪͙͈̲̻̜͑̉ͨͤ̈̋̊͒ͩ͌͊̃ͦͅ ̀͛͌̓̅͂̍̐̌ͤ̅ͩ̚͞͏̧͙̝͚̬̮̗W̸̶̩͙̦̲͊̌̅̅̔͒͛͊ͦ̐́͝͞H͎̮͎̗̠̫̭̟̰́ͦ͐̃ͨ͆̏ͯ͌̎́Ơ̡̧͚̹͖̗̩̖̻͖͇̺̹̐̽̂̚ͅ ̴̷̵̧͖͉̦̗̯̟̦̼̞̰̩̤̖̪̍͛ͣ̇͌̇͐́D̸̴̢̳̫̰̝̞͚̱̦̝̙͉̳͔͉̙͛͐͊ͬͫͧ̓̐̑ͭ͗͜͟E͎͓͕̦̺ͣ͂̉ͭ̑ͦ̃ͤ͐ͤ͊̾̓ͥ́͜͞V̸̦̺͈͉͈̬̫̱̮̹͂̏̎̑̀̕͠Ỡ̭̜͖̫̻̺̟̭̩͕̦̻͉͓̈́̒̅̇̕͢Ų̖̤̘̱̭̗̯͓̖͎̼̻͙͕̩̊͌ͬͧ̾̔͂͞ͅR̫͖̥̬͍̫̣̦̯͈͉̗̔́͛ͬ̉̃ͭ̂͋̋̒̌́͗͗̀͞ͅS̴̢̙͓̳͎̙̜̍̇̉̅̔́́ ̎͗̄͒̐͛̒ͩ̉̈̊̔̚͏̡̝̳͉̹̥̼̗̪͚͚̳͈͞A̷̹̞͇̬̘̘͎̼̠̱̳̦̜̭͉̫͊͒͊͐̆̈ͭ̂͐̇̈ͫ̚̚̚͘͟L̷̶̵̗̤̩̟̜͙͖̙̉͗͆̉ͦͮ̅ͭ͒͛ͭͥ͋ͧ͗̚̚͝Ļ̷̻͓̯̞̳̳͙̥͎̲̻̗̻̩̙̫ͧ̋ͪ̐ͨ̏̊͐̌̌̂ͣ͊́̔̿̚͘͢ͅͅ -
E=mc^2 is the relation between mass and energy. It's better to understand it as E/m=c^2. The energy expression that's of importance here is KE=(mv^2)/2, where KE is your kinetic energy. The really important thing about this is that you're going to be able to use your ability to store/tap Feruchemical Iron to change your velocity. If your energy is constant (ie, moving forward in a vacuum), tapping F-Iron is going to decrease your velocity, whereas storing it is going to increase it. I suspect that this, along with a bendalloy time bubble (both for deflection and time-skipping), are the keys to actually achieving "FTL" travel (FTL from the perspectives of others, at least). As far as conservation of energy vs. momentum, you can conserve both energy and angular momentum. Linear momentum won't be conserved, though.
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If it's not explicitly in a series/parallel configuration, then you're going to need Kirchoff's Laws. The sole reason the laws are used is because you can have combinations that aren't possible to solve with just straight series/parallel configuration rules. I'm not an electrical engineer/physicist, so I'm not sure if there are any other methods, but my physics professor made it pretty clear that Kirchoff's Laws are the only reliable way to solve for non-parallel/circuit configurations.
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You're going to have to use Kirchoff's Laws. If you have a diagram, I can help with that. Kirchoff's Laws come in two rules, which help you set up a system of equations to solve for them. They are as follows: Junction Rule: If a current splits into two paths, the algebraic sum of the two currents is equal to the current just prior to the split. Loop Rule: In a closed loop, the sum of all voltage differences is equal to 0. Basically, you can use the Junction Rule to name currents in terms of other currents (ie, if one current is I_1, and it branches into two currents, you can write the first as I_2 and the second branch as I_1-I_2), and the Loop Rule allows you to put everything into a system of two/three equations that's fairly straightforward.
