Top network posts

• 77 Does a star need to be inside a galaxy?
• 23 In aluminum, how does electricity travel through the surface oxide layer?
• 12 Does time speed up or slow down near a black hole?
• 12 The interstellar medium reflects extremely low-frequency radio waves. Could we use this fact to build a more efficient photon rocket?
• 12 If Ampere's law implies the Biot-Savart law, which implies Gauss's law for magnetism, does that mean Maxwell's equations are redundant?
• 9 Do radio beams self-focus in the interstellar medium?
• 8 Quantum tunneling into a black hole
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