berkeman's latest activity
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berkeman reacted to Ferdinandus's post in the thread List of errata available for "QFT in a Nutshell" 2nd edition A. Zee? with
Like.
Thanks for your reply. Good idea! I'll give it a try and keep you posted. -
berkeman reacted to DaveC426913's post in the thread Trying to find a story (YASID) with
Informative.
Apparently, it stands for Yet Another Story/Internet Document. New to me too. (Another thing ChatGPT solved for me.) -
berkeman replied to the thread Trying to find a story (YASID).What is "YASID"? Google says either a famous car designer, a Bangladeshi youth organization, or a Palestinian town...
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The relations between the three root ##(r_1, r_2, r_3)## and the quantities ##R## and ##Q## are given in the paper by C. Darwin...
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berkeman replied to the thread 4 of 4 models of automated blood pressure cuffs fail to read my BP.That model also has a very useful feature to report if your heartbeat is irregular (which can often indicate atrial fibrillation...
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berkeman replied to the thread 4 of 4 models of automated blood pressure cuffs fail to read my BP.Yes, sorry for the typo. I will edit the "1" into my post. That company name does sound familiar.
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berkeman replied to the thread Collection of Lame Jokes.
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berkeman replied to the thread 4 of 4 models of automated blood pressure cuffs fail to read my BP.It is not uncommon for the discomfort of an inflated cuff to increase BP. I experience this myself and I've seen it in a number of my...
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berkeman replied to the thread Wireless Charging.The problem is not creating a 5W 275kHz sinusoidal waveform with low harmonic content to drive a charging coil. The problem is...
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berkeman replied to the thread Wireless Charging.Agreed. I was just using the 3rd harmonic because it is usually the biggest depending on the signal generation circuit, and was an...
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As is the 2nd, 4th, and 5th. Typically the 3rd and 5th are higher in amplitude than the even harmonics. I believe I have this right...
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berkeman replied to the thread Weird News Compilation.Woo-wee! That is one call that would have been pretty challenging for me. Serious props and kudos to the FFs who climbed that crazy...
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berkeman reacted to kuruman's post in the thread High School An apparent contradiction between Fleming's rules with
Haha.
Sure but, to avoid confusion, I would have to ask all left-handed students to leave the room while doing that. I think the best bet is... -
berkeman replied to the thread Wireless Charging.Over what distance? Can the charging coil be placed in direct external contact with the battery case? Or better yet, can it be...
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