DaveE's latest activity
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DaveE replied to the thread Simple problem with voltages.The voltage at B wrt A is ##(V_B-V_A) \equiv V_{BA}=E_1-E_2-2IR=0## The current arrow drawn is an arbitrary polarity definition, so... -
DaveE replied to the thread Why must residential electrical systems be connected to Earth (soil)?.google, dude. It works great... https://staleyelectric.com/understanding-electrical-grounding-and-how-it-works/... -
DaveE replied to the thread What Are The Functions Of A GPU?.I'm no expert, but it's basically vector/matrix operations. MAC (multiply-accumulate) and inversion operations are the common... -
DaveE replied to the thread Malaysia Airlines Flight 370 crash.OK, really, I'm not trolling. I'm actually curious and a bit confused about the level of interest. What's the point? Why do we need to... -
DaveE reacted to QuarkyMeson's post in the thread Undergrad Which-Path from Global Momentum Measurement in Double Slit with
Like.
This is basically what you're asking: https://arxiv.org/pdf/cond-mat/0101157 A global momentum measurement of the screen only yields... -
DaveE replied to the thread Is it dangerous if there is a mains fault on a potable water pipe?.Which doesn't change my statement that metal water pipes must be grounded, accessible or not. Although nonexistence is a valid... -
DaveE reacted to berkeman's post in the thread Introduction: Non-physicist with speculative questions with
Informative.
Welcome to PF, @Mickey 6 -- You should have a look at this PF Insights article that applies to your situation... -
DaveE reacted to PeroK's post in the thread Introduction: Non-physicist with speculative questions with
Like.
First, if you post your personal theory, then the thread will be deleted, as per the forum rules. Second, we get several people like... -
DaveE replied to the thread Is it dangerous if there is a mains fault on a potable water pipe?.Because you are probably standing on the ground when you touch things. -
DaveE replied to the thread Is it dangerous if there is a mains fault on a potable water pipe?.In general yes. But it may depend on local codes. I really only know about California. The reason is that the utility transformer may... -
DaveE replied to the thread Electronics Failing While In Storage.I hear this popular attitude a lot, but I am very skeptical. Cheap parts aren't that predictable. I think the point is that the...
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