steevey
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Why does the light travel at precisely the speed...
steevey replied to mreddie1611's topic in Relativity
I don't really think we can answer this question right now. Why doesn't light travel at 196,000 miles per second or at 200,000,000,000 miles per second? -
EM waves can travel through space!
steevey replied to Zarnaxus's topic in Modern and Theoretical Physics
Well black bodies, at least on Earth still emit light, just in a different spectrum which we can't see, usually infra-red. The light coming from black bodies is usually just low in energy (or infra-red) unless its heated up. -
Well, since the universe before the big bang supposedly had a wave function, and supposedly was a function of 0 volume, however, it still had probabilities of existing because of the function. So the universe would have arose out of the improbability of existence itself, would would sort of explain why every other piece of matter is also waves of existence, since everything would just be a sort of derivative of that same wave.
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Gears provide mechanical advantage, which in the classical level is using the potential energy of gravity and weight distribution to make an action more efficient. Many machines do this in different ways, and they allow energy to be transfered across systems and used. If you have a teeter totter, there's two big ends which are sticking out. Normally to lift one end up, you'd have to use your arms and really push up. But, because there's a focal point (or center), the force of the big ends caused by gravity is being put on that focal point, allowing you to put energy into making a stick go up and down without having to worry about that extra weight yourself.
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Position only has meaning in reference to something.
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EM waves can travel through space!
steevey replied to Zarnaxus's topic in Modern and Theoretical Physics
Well, its known that only charged particles or interactions with charged particles Emmit light (as far as I know), and they can also be caused by quantum jumps, or where electrons go down to a lower energy state. -
How does our Galaxy maintain a fixed form?
steevey replied to alpha2cen's topic in Astronomy and Cosmology
There's gravity pulling from the center of the supermassive black hole which makes everything rotate at a pretty determined axis, but the galaxy isn't just a thin plate. The length may be like 200,000 light years across, but its not one star thick, its probably like at least 1000 light years thick, and thats just on the outer arms, and not in the galactic bulge. -
Because people didn't know about the wave mechanics model and that there being an actual "fabric" of space isn't proven to exist. But, there is something almost as cool under development which is quantum teleportation. I don't know exactly what scientists are doing in it, but they are I think trying to send information with 0 lag using entanglement and achieve greater processing capabilities using the wave properties of particles. The ultimate thing in that field though, I think is to travel to anywhere in the universe instantaneously whenever you want.
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But if entanglement collapses upon observation, I still don't get why when you look at it, all the atoms interact simultaneously and instantaneously as if they were one atom. Like if I shot one atom with a very low frequency laser, all the other atoms would act identically to that specific atom instantaneously.
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I know there's the uncertainty principal, but why does matter having a large mass decrease its wave packet size? An electron has very low mass, which is why it can encircle and entire atom as one shell, but a proton has a mass some 1800 times larger than an electron, and its wave is concentrated and a very small reigion. But wait, what about quarks? They are small than an individual proton. Whats the deal?
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So then how come when they are in the same state but have macroscopic distance between each other that they still act as one particle?
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According to wikipedia. Why why do you care so much as to completely change the topic?
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Ok, so they cool this substance so that all atoms occupy the lowest energy state, making them all in the same state, and also really close together. But, is that property caused by entanglement, or that because they are all so close together that all the particles wave functions are entangled, and if so, does that disappear when you observe it, or does it stay there because the waves are still all in the same state and technically interacting with each other at all points in time? Cause I've heard it being described as "you can now see the quantum effects on a macroscopic scale", but that pretty much defies my understanding of quantum mechanics.
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Maybe I'm thinking of a particular type of cell that's not a neuron, because I know there's at least some cell that uses electrical signals similar to the way I described it. In which case, wouldn't the particles or molecules take a wave form?
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What about the molecules being a wave after the neuron has sent the information but before the next neuron fully receives the information?
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Wait, I already knew that, I thought you were saying there was a boundary and that it was the edge of the space that was expanding since the big bang. I mean, it has to be infinite, but I guess a better question is why?
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Ok, even though an electron (and all other particles) is a wave of existence, its still a thing. It's still a solid thing that makes up the world around you. It's still classically effected by forces like gravity and charge. The "blinking" thing just comes from observing and determining the exact properties of it for the time you observe it, but even at that point, it is still a wave in its entirety.
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I don't mean electrical currents in the sense like I'm running a current through a fire, I mean it more like information which is carried through charged particles and discharges. Between the ends of neurons when one neuron is sending information to end of another neuron, there is some type of electricity going down the axon of a neuron and to in between neurotransmitters of one neuron which then the other neuron picks up. The chemicals mainly just effect the strength of the signal and then in the other neuron, receive the signal, but I'm talking about the very tiny space in between the two neuron ends, not that actual event where one neuron picks up the signal of the other neuron. In other words, I'm asking about the time after the signal leaves one neuron, but hasn't yet reached the next neuron end its destined for.
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Dude, chill out, I accidentally messed up. Should I go exploding on you because you said a tangent is when it "just touches"? It's like saying to a math teacher there's "space" inside a 2D shape, rather than its just an enclosed region. I also mentioned a unit circle too, which I could only know that the reason tangent doesn't work at 90 degrees is because your doing 1/0, which means I know how to use it anyway. But what was it about tangent in radians? Cause I know you can use tangent with them, but I don't remember what it does.
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With aging its more of a degrading process, where neurons become less susceptible to electrical signals.
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the origin of the very high energy cosmic ray ?
steevey replied to alpha2cen's topic in Astronomy and Cosmology
Probably are generated in the vicinity of the cores of galaxies, but scientists aren't 100% sure what causes them even in those regions. -
EM waves can travel through space!
steevey replied to Zarnaxus's topic in Modern and Theoretical Physics
Well, they aren't just "waves" that travel though things, photons are also particles which are ALSO waves. The the answer is they are waves of existence itself. On top of that, but it's also more or less one of Newton's laws of motion since nothing is stopping the photon from traveling in a straight line through the vacuum of space (usually), although light just never stops really even being light anyway unless its sucked into a black hole or stored in a chemical bond. -
(X^2+Y^2+Z^2+T^2)= a cone (with base and slant height extending indefinitely). That's FOUR dimensions AND a shape you can visually see. You have your 3 dimensions, and then the space is getting larger as time goes on. Of course, this would mean that your seeing all the time that it's been going through, which usually doesn't happen.
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In trig, tangent is the opposite divided by the hypotenuse in a right triangle. In other words, its a relationship between the sides. Tangent is also a place that touches a circle or curve at only one point. In terms of a unit circle, its sin(x)/cos(x). And a secant line is just a line that intersects a curve or circle at just two points.
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No, its probability. The gravity and other forces would hold the electron's most probable place to exist in a specific region of space, so the electron would usually pop there for 100 years +. Electrons CAN appear in other places than their most probable place though, but just not often.