berkeman's latest activity
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berkeman replied to the thread I'm trying to intuit how pull-up and pull-down resistors work.Pullup/pulldown resistors and switches are commonly used as inputs to digital logic gates or other digital logic like microcontrollers... -
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berkeman replied to the thread Undergrad Acceleration on an electric unicycle, how much does the rider have to lean?.What could possibly make those mismatch? Is there that much wheelspin when they are riding their EUCs? What kind of riding are they...
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That is very sad. He was smart as hell and funny with it. I was on the end of his caustic wit a few times, as I am sure many posters...
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Oh my. That explains a lot. I thought I was getting off too easy recently. I'm gonna miss his sarcastic whippings! :smile: RIP.
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berkeman reacted to Baluncore's post in the thread Seeking Information on a WW II Era Westinghouse Gyro with
Agree.
That gyro appears to have very little angular compliance. I would guess that it had to be for gun stabilisation on a moving land... -
berkeman replied to the thread Ground coffee freshness question.I did a Google search on starbucks ground coffee bag one-way valve (my current brand of coffee), and got to this page...
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I have some solemn news to report. Many in the community had been wondering where the prolific @Vanadium 50 has been. V50 hasn't posted...
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berkeman reacted to Rick16's post in the thread Undergrad The rocket equation, one more time with
Like.
Thank you. This is a very instructive way to look at it. -
berkeman reacted to Rick16's post in the thread Undergrad The rocket equation, one more time with Like.
I cannot believe how simple this turned out to be. A long time ago, I had decided that Δm was the mass of the expelled gases and I...
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berkeman reacted to A.T.'s post in the thread Undergrad Acceleration on an electric unicycle, how much does the rider have to lean? with Like.
What's the point of using an app, where you are not sure what it actually measures? What's the point in attaching it to the arm, if you...
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berkeman reacted to jbriggs444's post in the thread Is it possible for a vertical rod balancing on a table to lose contact by striking the top of the rod? with Like.
I just tossed a pen in the air, giving it an end over end spin. The laws of physics did not prevent it.
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berkeman replied to the thread Collection of Science Jokes P2.Thanks Jonathan! I always include the attribution to the person posting it on FB or wherever, but it they posted it without attribution...
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The terms of use for the XKCD website mean you should provide a link or give credit. That's XKCD 2848, "Breaker Box", https://xkcd.com/2848/
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berkeman replied to the thread Collection of Science Jokes P2.Edit/Adding link to XKCD 2848, "Breaker Box", https://xkcd.com/2848/ from Jonathan below. Thanks Jonathan. :smile:
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