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FactChecker replied to the thread Undergrad Why is gravity a fictitious force?.I would call it a satisfying consequence of General Relativity. GR explains the mysterious reason behind ##M_i=M_g##, not the other way... -
FactChecker replied to the thread Undergrad Why is gravity a fictitious force?.General Relativity hypothesizes that an object, appearing to accelerate due to gravity, is simply moving in a non-accelerated straight... -
FactChecker replied to the thread Undergrad Why is gravity a fictitious force?.No. But the current understanding explains why the exact same mass is appropriate in both equations. That is one of the strong points of... -
FactChecker reacted to PeroK's post in the thread High School Trivial quantum entanglement question (from a rookie) with
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You have several misconceptions about entanglement. First, entanglement is often a result of conservation laws and any number of... -
FactChecker reacted to Ibix's post in the thread Graduate Rotating Disk Method to Attain Light Speed? with
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Bertozzi even filmed a simple test of this, and somebody put it on YouTube: -
FactChecker replied to the thread Graduate Rotating Disk Method to Attain Light Speed?.Particles have been accelerated to near the speed of light, so it is known how much energy and force is needed. The results agree with... -
FactChecker reacted to PeterDonis's post in the thread Graduate Rotating Disk Method to Attain Light Speed? with
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Relativity says it must be. Relativity imposes a finite limit on the strength of materials, and that limit ensures that it is impossible... -
FactChecker replied to the thread Graduate Rotating Disk Method to Attain Light Speed?.The centrifugal force at the edge of the disk is proportional to the radius of the disk, which in this case is about 30,000 miles. Have... -
FactChecker reacted to PeterDonis's post in the thread High School Needs explanation for P in quantum tunneling formula with
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The best way to avoid misleading knowledge is to be very careful what sources you look at (the best ones are textbooks and peer-reviewed... -
FactChecker replied to the thread Gmail AI summaries.Yes! It would not occur to me that AI would search through my old emails to find a password. I assume that it took advantage of you... -
FactChecker replied to the thread High School Classic question regarding the nature of quantum tunneling.Very true. But it should be added that some work is going on in quantum computing/error correction, and quantum communication with... -
FactChecker reacted to PeroK's post in the thread High School Classic question regarding the nature of quantum tunneling with
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Theories can only be tested so far. It's an open question whether a cat could tunnel through a wall by sheer randomness. The probability... -
FactChecker replied to the thread High School Classic question regarding the nature of quantum tunneling.You are asking about something that is so unlikely that any theories will/have remained unverified for a very long time (billions of...