DaveE's latest activity
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Hi, my name is Andrea. I’m 60 years old and have developed an interest in Quantum Physics and Quantum Computing. I enjoy algebra (will... -
DaveE replied to the thread Undergrad How do I stretch a laser from a beam into a sheet?.You can just use a good epoxy to glue it to whatever you can find (hint: eBay...). You shouldn't need anything special. You probably...
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DaveE reacted to Astronuc's post in the thread Quinoline tag helps vancomycin breach gram-negative defenses (C&EN) with
Like.
https://cen.acs.org/pharmaceuticals/drug-discovery/vancomycin-derivative-targets-Gram-negative-bacteria/103/web/2025/12?sc=251211_sc_eng_... -
Looks like I am going to have to get LT Spice downloaded.
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DaveE reacted to Herman Trivilino's post in the thread Undergrad One does not “prove” the basic principles of Quantum Mechanics with Like.
That's true for the basic principles of every physical theory. Look at it this way. A proof starts with assumptions and uses deductive...
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DaveE reacted to anuttarasammyak's post in the thread What type of energy is actually stored inside an atom? with
Informative.
Yes. Ref. https://www.feynmanlectures.caltech.edu/II_01.html -
DaveE replied to the thread Simple timed controller.https://www.c3controls.com/white-paper/what-are-the-advantages-and-disadvantages-of-programmable-relay-controllers?srsltid=AfmBOorMhoyDMy...
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There are hundreds of choices of industrial timers that you can get started with. Here's a start. -...
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DaveE reacted to Averagesupernova's post in the thread Electric power distribution from powerplant to homes with Like.
The poor OP is likely thoroughly confused by now. The end goal always is to have a steady unchanging voltage where the end user utilizes...
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DaveE replied to the thread Electric power distribution from powerplant to homes.He asked about "more effective", not just more. Your example is good, but maximum power for a given line isn't really the point...
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DaveE replied to the thread I'm trying to intuit how pull-up and pull-down resistors work.Khan academy has some really good tutorials about basic circuit analysis. You may find studying that more productive than this approach.
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DaveE replied to the thread Electric power distribution from powerplant to homes.But as others have said ##R_W## isn't necessarily a constant. I don't think maximum power delivery is the only metric to optimize...
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I think what "useful" is depends on your metric for "good". For example, if you are being judged on top speed then the KE of the car is...
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At some point search for better solutions becomes quackery.
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DaveE replied to the thread Undergrad Mechanism of Energy Conservation in Zero-Amplitude Sum of EM Waveforms.Key point here. You add the vectors, with amplitude and phase, before you calculate intensity (energy). ##(A_1+A_2+A_3)^2 \neq...