DaveE's latest activity
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DaveE replied to the thread Kitten raising advice.Hire a good positive reinforcement dog trainer. This is often a difficult problem that isn't well addressed by conventional "obedience"... -
I know you didn’t bring it up, but I don’t think the pressure stuff is relevant. Current is not a vector because of how it behaves...
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DaveE reacted to kuruman's post in the thread B (Electric) current is not a vector quantity with
Like.
In that case, one would be wrong. Pressure is the scalar component of a vector divided by a scalar. This makes the ratio a scalar... -
DaveE reacted to willyengland's post in the thread I Large Synoptic Survey Telescope -> Vera C. Rubin Observatory with
Informative.
In principal this telescope creates a digital movie of the night sky, running for about ten years! The telescope take an image every 20... -
I would like to see something like a question mark. Kind of the equivalent of the universal linguistic retort "huh", meaning I don't...
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DaveE replied to the thread Sequential Analog Computers?.I'm not sure what you mean by "computer". But switched capacitor filters come to mind, like the old classic MF10 IC. It's old tech, no...
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DaveE replied to the thread 🔹RC Circuit with Series Capacitors — One Pre-Charged, One Uncharged.There isn't really an "initial" current in the resistor. It's value will instantly change when the switch closes. The solution in this...
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DaveE replied to the thread Wood/Glass/Metal Stop these carriage bolts from spinning when I tighten nuts.I think you can paint it with a high quality primer if it's dry and clean. However, when I get PT wood, it's always still quite wet.
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DaveE replied to the thread Wood/Glass/Metal Stop these carriage bolts from spinning when I tighten nuts.Don't oversize the through hole. You may have to seat the bolt with a hammer. Also don't countersink, use a counterbore if desired. The...
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DaveE replied to the thread B (Electric) current is not a vector quantity.The direction of a current is a property of the definition of that particular current. It's not the current that has a direction, it's...
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DaveE replied to the thread 🔹RC Circuit with Series Capacitors — One Pre-Charged, One Uncharged.https://math.arizona.edu/~system/archives/pwaters/IPSA%20math%202013/Math1%20HW/LaplaceNotes1.pdf