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visits member for 1 year, 1 month
seen Mar 27 at 21:21

Kids in rectangles irritating sick urchins rattling foxes, directory.kirisurf.org lol


Feb
17
comment Why doesn't everything expand when the universe expands?
I am tired of all these handwavy analogies. I want an actual explanation; I just gave a handwavy analogy that "shows" that everything expands together in my post.
Feb
17
asked Why doesn't everything expand when the universe expands?
Feb
12
comment Being in a solid state, why is ice slippery?
@dvnrrs Water is an exception: you can put a heavy dumbbell on a huge block of ice and watch as it slowly melts the water underneath it and embeds itself into the ice.
Feb
9
awarded  Commentator
Feb
9
comment Why does a star collapse under its own gravity when the gravity at its centre is zero?
But the fact is that the higher the pressure, the less likely the star collapses. The reason why the balloon collapses when you break it is because when you break it, the pressure goes away. The lack of pressure causes gravity (in the star) or the springiness of the balloon to take over and make the thing collapse.
Feb
8
comment Why does a star collapse under its own gravity when the gravity at its centre is zero?
This is laughably false. Pressure pushes outwards.
Feb
8
suggested suggested edit on What justifies dimensional analysis?
Dec
4
comment Why can movies get away with 24 frames per second, but games can't?
This is totally the wrong answer. I'm not asking about flicker on CRTs etc. I'm asking about frame rates on flickerless media such as LCDs and modern projectors. Data update rate is what I'm interested in; on modern screens the flicker is infinity Hz but with a too low data update rate you get a jerky feeling. My question is about why this minimum rate is so much lower for movies than for games.
Dec
3
asked Why can movies get away with 24 frames per second, but games can't?
Nov
10
accepted Apparent paradox in special relativity: transmitting a message and setting off after it
Nov
8
comment Apparent paradox in special relativity: transmitting a message and setting off after it
What if Mikako waits 2 years before departing? In that case, Mikako would be 2 ly away from Earth when Noboru gets the e-mail. But in that case, if Noboru gets on a spaceship and heads to space, he will still meet Mikako in a very short time.
Nov
8
asked Apparent paradox in special relativity: transmitting a message and setting off after it
Aug
8
awarded  Critic
Jun
20
accepted What counts as “observation” in Schrödinger's Cat, and why are superpositions possible?
May
6
comment What counts as “observation” in Schrödinger's Cat, and why are superpositions possible?
The cat might care, since the coin is large enough that we can predict its motion, given enough information, using completely deterministic Newtonian physics to a sufficiently accurate degree to predict head/tails. Or so I think ;)
May
5
awarded  Quorum
May
5
comment What counts as “observation” in Schrödinger's Cat, and why are superpositions possible?
The thing is that CI seems to give great magical powers to observation, but MWI seems to give even greater magical powers to "random" processes that give more than one possible outcome, to the point where randomness is an all-powerful god capable of cloning the entire universe into several copies in a split-second. Neither is "intuitive".
May
4
awarded  Student
May
4
asked What counts as “observation” in Schrödinger's Cat, and why are superpositions possible?
Feb
28
awarded  Scholar