berkeman's latest activity
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berkeman reacted to PeterDonis's post in the thread Undergrad Can a Gyroscope in a Satellite Detect Orbit? with
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Moderator's note: A subthread on frame fields has been spun off into a separate thread... -
berkeman reacted to DaveE's post in the thread High School Analog power supply output question with Like.
This is one of my first real designs for money as an EE. It was drawn by hand (early 1980's) and is a #$@! sight clearer than your...
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berkeman replied to the thread High School Analog power supply output question.@Patch Cabbage -- it's time for you to start working on your toolkit and skills for working with circuits if you want to keep going down...
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berkeman replied to the thread Share Animal Pictures: For Animal Lovers.
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berkeman replied to the thread LaTeX How to correctly type "-i.e." in LaTeX?.I would suggest just communicating with that editor to ask how they want it done. That seems like a more productive path compared to...
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https://tass.com/russia/744766
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Yes. Thank you!
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berkeman replied to the thread Graduate Screwy AAA Battery.Ah, okay, that makes more sense. That battery goes in the Recycle Pile! :smile:
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Ok. I'll try that. Yes. it is mVdc. It's an IDeal 61-340 meter. (Old I know) OK. Problem solved. I rearranged it and it's reading 302.4...
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berkeman replied to the thread Graduate Screwy AAA Battery.So it is reading 3024mVdc? What if you take the meter off of autorange and force a DC and then an AC range? What meter is it?
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berkeman replied to the thread Graduate Screwy AAA Battery.Welcome to PF. Is it maybe an AC reading instead of DC? It sounds like you meter is autoranging? I don't know what could cause an AAA...
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A pocket sundial! from 1637. Such is not that unusual in the era before pocket watches. What is unusual is the map with labeled zones...
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berkeman reacted to QuarkyMeson's post in the thread Buy Want to buy second edition hardcovers of L&L to complete set with Like.
Looking for second edition Landau and Lifshitz hardcovers to complete set. Would like to pay 30-50 dollars per volume depending on...
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berkeman reacted to Averagesupernova's post in the thread I'm trying to intuit how pull-up and pull-down resistors work with Like.
Hint: You always have an infinite number of infinite resistances in parallel with the open switch. You have that even with no switch. If...
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berkeman replied to the thread New member interested in cosmology and complex systems.Welcome to PF; it's good to have you here. :smile: Please be sure to read over the PF rules (see INFO at the top of the page). We...
