berkeman's latest activity
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Hi all, I've been in the world of physics for about 4 years. I teach physics only and want to continue doing so. Teaching high school... -
berkeman replied to the thread introduction.I think you must mean this part of the rules: In that context, it just means don't post in all bold font, since that is distracting...
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berkeman replied to the thread introduction.Welcome to PF. :smile: Please be sure to read the PF Rules (see INFO at the top of the page). We do not allow personal speculation or...
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berkeman replied to the thread Undergrad DH Mt Bike - Optimizing Drop Landing Ramp Profile.
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According to the GQ GMC-800 Geiger Counter User Guide: Background Safe Levels Suggested background readings levels: 1. Safe level...
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berkeman reacted to robphy's post in the thread Help with problem in MIT open course general relativity with
Informative.
There is a Levi-Civita tensor ( https://en.wikipedia.org/wiki/Levi-Civita_symbol#Example:_Minkowski_space ), which is the volume element... -
berkeman reacted to jojosg's post in the thread Engineering Shear Stress Question (Rocker Arm & pin diameter) with
Like.
ok Thank you very much! -
berkeman reacted to Mayhem's post in the thread Side reactions while dissolving silver with Informative.
Your descriptions a little hard to follow. Gardening is irrelevant to the chemistry. What I'm seeing is Step 1: H2SO42 (aq) +...
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Where are all these people going? Down to the Tidal Basin in Washington DC, to see the cherry blossoms!
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berkeman reacted to robphy's post in the thread RIP Andrzej Trautman (1933 - 2026), relativity and gravitational waves with Like.
https://en.wikipedia.org/wiki/Andrzej_Trautman http://ktwig.fuw.edu.pl/1,1,7,p-40,prof-andrzej-trautman.html...
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berkeman reacted to dextercioby's post in the thread RIP Andrzej Trautman (1933 - 2026), relativity and gravitational waves with Informative.
The modern (post-1950) formulation of differential geometry is written in terms of fiber bundles, invented in the 1940s. Trautman was...
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berkeman replied to the thread Request for a new History of Science subforum.We could add a Prefix in GD for Obits if that would help your searching.
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berkeman reacted to DaveC426913's post in the thread Insights Thinking Outside The Box Versus Knowing What’s In The Box with Like.
6000+ exoplanets detected (1988+) Discovery of the Higgs Boson (2012) Accelerating Expansion of the Universe (1998/2011) Quantum...
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berkeman reacted to Rive's post in the thread 4 of 4 models of automated blood pressure cuffs fail to read my BP with
Agree.
Terrible, by my experience.
