• I just proved Einstein wrong where's my nobel prize?

    Something with matter gains mass as it gains energy, so therefore matter and energy are both mass. If energy is mass then how does energy equal mass times c^2?
    Something with matter gains mass as it gains energy, so therefore matter and energy are both mass. If energy is mass then how does energy equal mass times c^2?
    10 answers · 15 hours ago
  • A plate carries a charge of -3.1 nC and a rod carries a charge of +8.4 nC?

    A plate carries a charge of -3.1 nC and a rod carries a charge of +8.4 nC. How many electrons must be transferred between them so that both objects have the same charge? Physics question??? Thanks!
    A plate carries a charge of -3.1 nC and a rod carries a charge of +8.4 nC. How many electrons must be transferred between them so that both objects have the same charge? Physics question??? Thanks!
    4 answers · 22 hours ago
  • Is gravity a force or not?

    I was taught that gravity is a fundamental force but now I'm being told that gravity isn't a force, it's just the curvature of spacetime caused by massive objects. So what is it? Are we constantly being pulled towards the earth or are we constantly free falling through curved spacetime?
    I was taught that gravity is a fundamental force but now I'm being told that gravity isn't a force, it's just the curvature of spacetime caused by massive objects. So what is it? Are we constantly being pulled towards the earth or are we constantly free falling through curved spacetime?
    17 answers · 3 days ago
  • Einstein theory is fake proof?

    If space and time are the same why does walking backwards not make me a baby again?
    If space and time are the same why does walking backwards not make me a baby again?
    22 answers · 5 days ago
  • Hard physics question?

    Best answer: Solid sphere: I = k*m*r² where k = 0.4
    Vi = √[2*g*h/(1+k)] = 6.88 m/s
    Vyi = Vi*sinΘ = 2.908 m/s down
    H = 5 = Vi*t + ½g*t² → t = 0.7561 sec to fall 5 m
    Vxi = Vi*cosΘ = 6.235 m/s
    X = Vxi*t = 4.71 m from edge of house
    Best answer: Solid sphere: I = k*m*r² where k = 0.4
    Vi = √[2*g*h/(1+k)] = 6.88 m/s
    Vyi = Vi*sinΘ = 2.908 m/s down
    H = 5 = Vi*t + ½g*t² → t = 0.7561 sec to fall 5 m
    Vxi = Vi*cosΘ = 6.235 m/s
    X = Vxi*t = 4.71 m from edge of house
    6 answers · 6 days ago
  • Does anyone else think Aristotle was a quack?

    I have a hard time believing he followed the scientific method, it's great that he was such a philosopher, but as a scientist he was a quack. You can't just pull science out of your a$$. And somehow this man was the big shot with all the answers up until Isaac Newton and the like actually found out how the... show more
    I have a hard time believing he followed the scientific method, it's great that he was such a philosopher, but as a scientist he was a quack. You can't just pull science out of your a$$. And somehow this man was the big shot with all the answers up until Isaac Newton and the like actually found out how the universe works.
    10 answers · 3 days ago
  • Does quantum theory make the existence of a God more likely?

    I don't want answers that dismiss the existence of God outright or quote scripture, please give me good reasons why you think what you think.
    I don't want answers that dismiss the existence of God outright or quote scripture, please give me good reasons why you think what you think.
    9 answers · 3 days ago
  • Can light travel faster than it already is?

    Like, much more faster than it already is. Is there like a possibility or if it already is then an equipment for this? I feel like light can travel faster than it already is..
    Like, much more faster than it already is. Is there like a possibility or if it already is then an equipment for this? I feel like light can travel faster than it already is..
    4 answers · 17 hours ago
  • I keep hearing that 'energy created matter' and....?

    Best answer: I cannot explain it to you. I am somewhat sceptical. The idea is that IF ( and this is quite a big if ) energy can be turned into matter and matter can be turned into energy then what TYPE of matter is created. That would surely be random and atoms would not necessarily be the only type of matter that could be... show more
    Best answer: I cannot explain it to you. I am somewhat sceptical.
    The idea is that IF ( and this is quite a big if ) energy can be turned into matter and matter can be turned into energy then what TYPE of matter is created. That would surely be random and atoms would not necessarily be the only type of matter that could be created.

    Now I know that an atom that is bound together has less mass than the pieces that make it up.
    And that the more strongly bound the atom is the lower the mass.

    Yet in all of THESE cases we still have the protons, neutrons and electrons.

    We are not able to take a pinhead of matter and simply turn it into pure energy.
    Nor take a hunk of energy and turn it into a piece of gold.

    It will take more evidence before I am convinced of the validity of the argument.
    5 answers · 2 days ago
  • How do scientists use c^2 in equations when it's over 20 digits long?

    Best answer: Several possible answers here: a) so what? The amount of digits in any chosen representation really doesn't matter, since scientists rarely use pencil and paper when dealing with numbers (equations yes - numbers no) b) c² and other values usually are only transformed int a numerical representation in the... show more
    Best answer: Several possible answers here:
    a) so what? The amount of digits in any chosen representation really doesn't matter, since scientists rarely use pencil and paper when dealing with numbers (equations yes - numbers no)

    b) c² and other values usually are only transformed int a numerical representation in the absolutely last step, i.e. when you actually need to get the number(s) from your calculation to compare it against an experimental result

    c) most of the scientists who deal with c² are particle physicists - and this crazy bunch usually uses a cgs (centimeter-gram-second) unit system (specifically, the Heaviside-Lorentz-System, https://en.wikipedia.org/wiki/Lorentz%E2... ) instead of the mks (meter-kilogram-second) unit system. In the former, they usually also make a few (perfectly valid) substitutions with the effect of normalizing c (and a few other unwieldy numbers) to 1. Of course, this leads to some other unwieldy numbers to become even more unwieldy, but those are rarely used...
    6 answers · 3 days ago