berkeman's latest activity
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Beginning mile 2 of my 4 mile morning run yesterday. Calm wind and comfortable at -7 deg F. The next 10 miles down this road are all... -
berkeman reacted to Astronuc's post in the thread What type of energy is actually stored inside an atom? with
Informative.
When an atom of say Th, U, Pu and other transuranics fissions, much of the energy released is expressed as kinetic energy of the two... -
berkeman reacted to Astronuc's post in the thread Quinoline tag helps vancomycin breach gram-negative defenses (C&EN) with
Like.
https://cen.acs.org/pharmaceuticals/drug-discovery/vancomycin-derivative-targets-Gram-negative-bacteria/103/web/2025/12?sc=251211_sc_eng_... -
berkeman reacted to Jaziel's post in the thread High School Lunar Orbit Issues & Lunar Clocks with Like.
PS. Good news! I've just contacted the supplier and they confirm that the clock is definitely at fault and that they're perfectly happy...
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South Carolina nuclear test? :oldtongue:
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berkeman reacted to ojitojuntos's post in the thread Undergrad Question about discussions around quantum interpretations with Like.
Thank you! Now, these past weeks I’ve tried to take some time off work to read a bit, but in afraid that I’m far from being able to...
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berkeman replied to the thread Should The Lounge Content Be Excluded from Trending?.I think this is the key point here. We are asking the Xenforo developers to give us more control over which threads are featured at the...
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Any SPICE will do with that code, but LTspice, now from ADI, is probably the best at the moment, and is free. Also, subscribe to...
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Looks like I am going to have to get LT Spice downloaded.
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Employing my usual infallible social radar I'm sure this is the right place for one my disjointed anecdotes: At the age of ~10 I got...
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Here is an LTspice model for the uA/LM709. At the end it defines the transistors used as all having the same specifications. * LM709...
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berkeman replied to the thread I thought it was only Amazon that sold unsafe junk.Yes, we call them "suicide cords" or "widowmakers" because they don't obey safe practices of keeping AC Mains live wire connections...
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berkeman replied to the thread I thought it was only Amazon that sold unsafe junk.Wow, that's not good. Are there any certification markings on the box or the cord? Anything like UL or similar?
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berkeman reacted to Averagesupernova's post in the thread I thought it was only Amazon that sold unsafe junk with
Wow.
I grabbed an under cabinet LED light today at a big box store. Nothing special. 18 inches in length and made to plug several lights... -
berkeman replied to the thread General principle of turbomachinery: true also for rocket turbopumps?.Using AI as a technical reference at PF is not allowed. Thread is done.
