In: Physics
General Relativity
Q: What is Einstein’s equivalence principle?
Q: What is gravitational lensing? Why is it useful for cosmology?
Q: What is gravitational time dilation?
Q: What are MACHOs? What does the MACHO microlensing result mean for dark matter in the Milky Way?
Q: What is the bullet cluster? How does it give evidence for dark matter and against modified gravity?
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