What are good online courses of general relativity?
Remember that learning a subject like GR is a form of skill-building. That means you need practice, just like when learning to carve wood or play tennis.So, my suggestion for you is to use a text such as Sean Carroll’s excellent notes available for free from the arXiv, https://arxiv.org/pdf/gr-qc/9712..., and study it with a pen and paper next to you. For every single statement in the book, make sure you understand it and you can convince yourself that it’s true. Also find a good set of homework assignments and solve them (e.g., Assignments | General Relativity | Physics | MIT OpenCourseWare).For even better understanding, do the following exercise: go back in your mind to some topic you already covered, e.g., the Schwarzschild solution, and briefly write your own notes. Can you explain what the assumptions for that solution were? Can you work out the math to find the Schwarzschild metric? When you get stuck (and you will!), try hard to get unstuck (it might take an hour or two), and only then look back in the book to see what you’d missed.The precise course notes you’re using aren’t that important. What matters most is how much you engage with the material.Do not be tempted to learn from YouTube! Don’t get me wrong — there’s nothing in principle wrong with watching lectures as opposed to reading them. But the problem is that when you’re watching a lecture, you’re much less likely to pause the video every time you’re confused, or work on homework problems. But it’s precisely the time you spend thinking for yourself about the subject that is most useful for learning!
General relativity question?
i need help with a hw question: Form your knowledge of general relativity, would you expect radio waves from distant galaxies to be deflected as they pass near the sun? why or why not? please help!!
Special and General Relativity?
General Relativity describes all of Special Relativity, with appropriate simplifications. It also describes all of Newtonian gravitation, with different simplifications. GR describes spacetime as the product of mass, and so gravitation is spacetime is shorthand for all the mass in the Universe, telling a local test mass how to move. Evidence: gravitational lensing, frame dragging, spindown of binary pulsars, advancement of the perihelion of Mercury, anomalous boosting when using planets to slingshot space probes, an easy "initial" description of Universal expansion. SR describes the mutability of distance / duration by relative motion. Evidence: solar muons, the behavior of heavy elements (the color of gold), tests of light speed. Plenty more: http://www.physics.adelaide.edu.au/~dkoks/Faq/Relativity/SR/experiments.html
How to make a model on general theory of relativity?
This all depends on how good you are at model building. Step 1: Get a BIG piece of stiff cardboard to make a template of the hyperbolic curve of space-time in the presents of mass Step 2: Start at the middle of the long edge of the cardboard and plot a hyperbolic curve that goes asymptotic about a 3rd of the way to the edges away from the curve. Go several inches from the curve and reflect it the other way. You now have a 2D cross-section of the warp of space-time at a mass. Step 3: Go to an art store and buy several sheets of 1/8" "Foam Core" and a "chisel Point Exacto Knife" and a box of blades (They will know that is..) Step 4: Starting at the bottom (short edge) of the hyperbolic curves measure horizontally the distance between the curves (the diameter of the warp in spacetime at that point) and record the number. Go up 1/8" and do it again until you have diameters all the way to the top of the curve (long edge) Step 5: In the center of each sheet of foam core draw a circle for each diameter you got in Step 4. Step 6: Spray glue (3M 77 is a good choice, the art store will know what that is also) the sheets of foam core on top of each other smallest to largest to form your gravity well in 3D You can stop here, if you wish, this is a good approximation. Paint everything flat navy blue. Use the cardboard template for a poster showing the cross-section and the foam core as 3D model. ADVANCED MODEL: Step 7: While you are at the art store also buy a paper meshea (sic) kit (They will know what that is too). and smooth out the stair steps of your gravity well. Step 8: Paint with epoxy clear coat Step 9: Roll ball bearings across the gravity well to show bending of light in the presents of mass
What are some good online lecture series on special relativity?
If you are talking about JUST special relativity, this online course by Brian Greene is the best lesson out there. I had the luxury of taking this course in classroom with him. Each week Prof. Greene would assign the students to watch the lectures at home then ask questions in class. The lectures are vividly visualization based (backed by the full resource of his World Science Festival organization) and complemented by Brian's skillful explanation (if you are not already familiar with his works The Elegant Universe or The Fabric of the Cosmos).The relativity of simultaneity topic is made especially easy to understand for me through the animations. It gave me a deeper insight of how a believer of Einstein's theory should be convinced that the future (and the past) has always existed. World Science U
Is there a good video tutorial that explains the theory of relativity perfectly without going into the math aspect?
These video courses by Leonard Susskind are very good:Special Relativity and ElectrodynamicsThe Theoretical MinimumThey are targeted to laymen, very approachable and insightful.
Whats the difference between special relativity and general relativity?
Special relativity deals with inertial frames of reference - meaning systems moving at constant velocity and not in a gravitational field. General relativity deals with non-inertial frames of reference - meaning systems having acceleration and/or in a gravitational field.
Important support for general relativity came from studies of the precession of the orbit of?
Mercury.
The Theory of General Relativity, proposed by Albert Einstein, has given scientists a way to understand ______?
Gravity! This is to me the most amazing idea in the history of science. Einstein tried to make special relativity consistent with the phenomenon of gravity as described by Newton. To do this he ended up conceiving of those parabolic trajectories objects follow when they fall in a gravitational field as straight lines in 4 dimensional CURVED spacetime arena. The theory is summed up with the equation. G_mn = 8Pi G T_nm where G is Newton's GRAVITATIONAL constant.