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Why so angry about God?My anger is about the stupidity of people who waste their lives in the pointless worship of something that cannot possibly exist, or if it did, could not be affected by worship. And also towards the disgusting behavior of people who use god as an excuse for their perversions. Good deeds do not need an excuse.
But that doesn't mean that , if there's someone exactly a mile away, I can only see the tip of their nose and their toes.
That is, does a photon's momentum affect its path through the gravitational field in the same way a massive object's velocity would?The momentum of a photon does not affect it's path through a gravitational field. Or another way to say this is that photons of different energies will follow the same geodesic.
can no two electrons in the entire universe share the same quantum state?I would place a constraint on this: since a particle cannot influence another particle outside its light cone, I would suggest that the question be rephrased as "can no two electrons in the same light cone can share the same quantum state?".
Can the whole universe be considered a quantum system?According to the Big Bang Theory, at one time the universe existed within the same light cone, so there was the possibility that all particles could have been entangled with every other particle in the universe. That produces a quantum state that is too complex for us to understand...
Are you saying that SR has been disproven, and the twin paradox was a hoax?No, I am saying you do not know what a dimension is and you making up stuff that makes sense to you, but is wrong.
QM theory says no amount of measuring of a system will allow you to predict it.Be careful how you state this. The test of quantum mechanics is not merely that it explains obvious quantum phenomena like line spectra, but that it scales to classical mechanics for large assemblies. And it does.
When we fire bullets (particles) at a slit they will, as you said, go through one slit or the other and form the 2 slit shadow we expect.No! There is a calculable probability that a bullet will, in effect, "go through both slits". As Eddington said, "If a student of physics should fall through the floor and find himself in the room below, he would not be surprised but mildly elated at having observed an extremely rare phenomenon."
Was it a majority of pensioners that voted for Brexit, many of whom are now dead a year later?
This scenario has been written to assist in the understanding a multitude of aspects of special relatively for the amateurs of us interested in cool physics (including me). I would be grateful for a physicist with a University degree to answer in detail (sorry no half baked musings on this on please).While my answers are not half baked musings, I doubt there are any actual relevant physicists on forums like this one. You want an educated answer, fine, but it's not going to come from a physicist.
Scenario:It isn't really stated, but I presume from this description that C, A, and B are locations in some reference frame and that the observers so named are stationary at those locations and the distance given (the 100m LY) is measured in that frame.
C <-- 100 million light years --> A <-- 100 million light years --> B
1 --> (a = 20 m/s/s until 0.99999c)
2 --> (a = 20 m/s/s until 0.5c)
<-- 3 (a = 20 m/s/s until 0.99999c)
<-- 4 (a = 20 m/s/s until 0.5c)
Primary Details:
- Spaceships 1 and 2 set out from observer A towards observer B who is 100 million light years away. Each accelerate at 20 m/s/s (i.e. ~2g) until cruising velocity is made. 1 accelerates to 0.99999c while 2 only accelerates to 0.5c
-Similarly spaceships 3 and 4 set out from observer A to C.
- Each spaceship also decelerates at 20m/s/s as it approaches the target observer such that they stop when they reach the target.
- 1, 2, 3, 4, A, B, C are all fitted with 6 lasers each, directed to each of the different observers and spaceships. The lasers flash once per 100 seconds for 1 second duration. i.e. on the 99th second the lasers turns on for 1 second. The light is green (wavelength of say 532 nm).If it exhausts the reaction mass at 0.9c, it is 90% efficient by that metric. It really doesn't make a different if it is antimatter drive or water rocket like the space shuttle.
Secondary Details for Auxiliary questions :
- Each laser makes 1 GW of effective light emitted during the 1 second bursts.
- Each spaceship weighs 10 Tonnes excluding fuel. Let's assume each ship has some sort of particle accelerate to use as thrust that can accelerate the particles used as thrust to ~0.9c. Also it is powered by let's say some theoretical antimatter/matter source and the whole system can convert all matter into thrust at 99.9% energy efficiency.
Please ignore the expansion of the universe.It wouldn't be SR if we assumed otherwise.
Q1.a) According to spaceship 1, how long did it take to reach B?~447222 years
b) According to spaceship 1, when does spaceship 2 arrive at B?When the ships rejoin, the clock on ship A reads about 100446222 years.
c) describe, inducing a rough timeline, what spaceship 1 observes from the laser lights (i.e. the wavelength, how long between flashes and duration of flashes, the energy intensity) , originating from A, B, 2, 3, 4 as it accelerates to 0.99999c, cruises at 0.99999c, and finally approaches B.The flashes are all the same at first.
a) According to spaceship 2, how long did it take to reach B?I get 173 some million years
b) According to spaceship 2, when does 1 arrive at B?Frame dependent question since spaceship 2 is not present at that event.
describe, including a rough timeline, what spaceship 2 observes from the laser light originating from A, B, 1, 3, 4 as it accelerates to 0.5c, cruises at 0.5c, and finally approaches B.At cruise, gamma is 1.1547 and Doppler is a factor of two, at least relative to the lettered objects. It can be worked out from that.
]a) According to observer B, when does 1 reach it?We haven't stated what the clock at B reads at any particular event, so this cannot be known. If it is synced to A in that original frame, then ship 1 gets there at year 100001000 and ship 2 at 200MYr (plus about 100 days). This is pretty trivial arithmetic.
b) According to observer B, when does 2 reach it?
c) Describe, including a rough timeline, what observer B observes from the laser light originating from 1, 2, 3, 4.Same thing that those ships saw when observing B.
a) According to observer A, when does 1 reach B?Assuming the frame of A and that clocks are synced in that frame, all these events are the same answer as B's answer.
b) According to observer A, when does 2 reach B?
c) Describe, including a rough timeline, what observer A observes from the laser light originating from 1, 2, 3, 4.Same as those that seen by the ships looking at A.
d) According to observer A, how fast are 1 and 3 moving away from each other?That's a 3 way relation, not particularly defined. Ships 1 and 3 are moving at .99999999995c relative to each other period. It's an objective relation, not a frame dependent one.
b) If each laser had a narrow enough focus and the observers had a large enough receiver to capture all of the light emitted to them from each spaceship, what would the energy levels (GW) look like from each spaceship.Work it out as a function of energy conservation.
If that's all it does, it seems to only measure my speed component in the direction the gun is pointed, a fraction of my actual speed if I'm not driving directly towards or away from the gun.Which is why it is very difficult to defend a charge of speeding against a Doppler radar gun - it can't indicate a higher speed than the target.
Atoms bouncing off each other collapses their waves.That doesn't even parse.