Could anyone explain how theory of relativity works? I've been trying to understand it through YouTube Video explanations but I just don't get it. Please explain it in easy terms that I'll understand it quicker. And here are my additional questions:
1. Why is it related to E=m(c)squared
2. Why is E=m(c)squared significant to nuclear bombs?
3. What is the difference between General and Special Relativity
1. Why is it related to E=m(c)squared
2. Why is E=m(c)squared significant to nuclear bombs?
3. What is the difference between General and Special Relativity
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I won't swamp you with details, but to answer your questions:
1. E = mc^2 is the equation for mass energy equivalence. m (the mass of a body) if converted entirely to energy would become energy E. c=3x10^8 m/s is simply the speed of light. The equation is actually based on a very bold *assumption* about conservation 4-momentum. There is a famous though experiment (http://www.deusdiapente.net/science/rela… titled E=mc^2) that shows the mass equivalent of a photon energy E is m although it only serves to elucidate the principle, not derive it.
2. In a nuclear bomb the energy that is released by the nuclear reaction comes from a mass defect in radioactive nuclei when they undergo a chain reaction. That is to say that mass is converted directly into energy, so using E=mc^2 we can figure out exactly how much energy if we know m. It turns out that it is very large, since c is so big we don't need to lose much mass to produce a lot of energy. Hence why nuclear bombs release so much energy.
3. General Relativity is kind of an extension of Special Relativity used to explain gravity. Special Relativity uses the idea that the speed of light is constant (i.e. a light ray always travels away from you at c no matter how you try and catch up) to show that different moving frames (frames in the sense of a framework of coordinates (x,y,z)) measure length and time differently. General Relativity applies these ideas about moving frames to a falling frame in a gravitational field, the falling frame has an ever changing measurement of length and time compared to one that is not influenced by gravity. This ever changing measurement can be seen as a curvature of space and time (or simply space-time).
1. E = mc^2 is the equation for mass energy equivalence. m (the mass of a body) if converted entirely to energy would become energy E. c=3x10^8 m/s is simply the speed of light. The equation is actually based on a very bold *assumption* about conservation 4-momentum. There is a famous though experiment (http://www.deusdiapente.net/science/rela… titled E=mc^2) that shows the mass equivalent of a photon energy E is m although it only serves to elucidate the principle, not derive it.
2. In a nuclear bomb the energy that is released by the nuclear reaction comes from a mass defect in radioactive nuclei when they undergo a chain reaction. That is to say that mass is converted directly into energy, so using E=mc^2 we can figure out exactly how much energy if we know m. It turns out that it is very large, since c is so big we don't need to lose much mass to produce a lot of energy. Hence why nuclear bombs release so much energy.
3. General Relativity is kind of an extension of Special Relativity used to explain gravity. Special Relativity uses the idea that the speed of light is constant (i.e. a light ray always travels away from you at c no matter how you try and catch up) to show that different moving frames (frames in the sense of a framework of coordinates (x,y,z)) measure length and time differently. General Relativity applies these ideas about moving frames to a falling frame in a gravitational field, the falling frame has an ever changing measurement of length and time compared to one that is not influenced by gravity. This ever changing measurement can be seen as a curvature of space and time (or simply space-time).
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