berkeman's latest activity
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The meter is a moving coil meter, with an internal resistance of 10 Ω. That is the resistance of the coil and the hairsprings. The... -
The first one is off by ##10^6##, no? A million microphones is a phone and a trillion would be a megaphone. The SI unit of beauty is...
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berkeman replied to the thread Collection of Science Jokes P2.
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berkeman reacted to JimWhoKnew's post in the thread Graduate Stumped by a Lagrangian in Einstein's 1916 paper with
Like.
Welcome to PF! I didn't carry out the calculations, only looked at the paper. Please separate the equations (no multiple equations... -
berkeman reacted to Averagesupernova's post in the thread Air compressor pump HP requirement? with
Informative.
Very large tires, some sandblasting now and then, air tools, etc. -
berkeman replied to the thread Air compressor pump HP requirement?.LOL, that confused me too. I had to use a Search on the thread to figure out where he got the 200 gallon number from. :smile: Just...
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berkeman reacted to Averagesupernova's post in the thread Air compressor pump HP requirement? with
Haha.
Or, you could pay attention to which poster is posting what. -
berkeman replied to the thread Why Is Fan Suction/Intake So Weak Compared to Exhaust?.Interesting YouTube video tracing out the airflow around a fan:
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Forget my previous post. I have fixed a few bugs and got the uA709 / LM709 working as a 5kHz voltage follower. Attached are the .asc and...
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berkeman reacted to Ray033's post in the thread High School Does acceleration affect impact energy vs constant velocity? with Like.
This explanation was very helpful. It gave me a completely different way to look at the problem and made it a bit easier to understand...
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berkeman reacted to Ranger Mike's post in the thread Automotive Race car suspension Class with Informative.
Good video on tire side wall flex, contact patch etc
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berkeman reacted to Ranger Mike's post in the thread Automotive Race car suspension Class with Like.
850,000 views...WOW, Thank you rm
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berkeman reacted to Astronuc's post in the thread Undergrad Very high energy photons in space with Informative.
Simply using AI, which one writes "it said [Redacted by the Mentors -- AI is not a valid reference at PF]" isn't valid since there is no...
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berkeman replied to the thread Undergrad Very high energy photons in space.Due to a long history of problems with the OP, they are now gone from PF, so this thread will remain locked. Thanks for the great reply...
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berkeman replied to the thread Undergrad Very high energy photons in space.Thread is closed for Moderation.
