Astronuc's latest activity
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Astronuc replied to the thread History For WW2 buffs!.I will have to research the matter. I watched a couple of videos from the same series last night. One story was about the USS Iowa... -
I wanted to find out more about this but I found nothing. After I had a conversation with ChatGPT where it scoured naval records, this...
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Astronuc replied to the thread History For WW2 buffs!.An interesting story - How One Cook's "INSANE" Idea Stopped U-Boats From Acoustically Detecting Convoys The story apparently...
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Astronuc replied to the thread Ferris Eugene Alger.Certainly, during WWII and perhaps WWI. The US government does have a provision for 'secret patents' or 'classified patents', which...
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Astronuc replied to the thread Ferris Eugene Alger.Patents are not classified. Patents are filed with the Patent & Trademark Office (PTO) and are published in the public domain. Often...
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https://news.stonybrook.edu/university/c-n-yang-nobel-prize-winning-physicist-defined-stony-brooks-scientific-excellence/...
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Amazing age and amazing number of contributions. I wonder if we will ever know why he was not in terms with Lee.
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https://en.wikipedia.org/wiki/Yang_Chen-Ning ( photo from http://insti.physics.sunysb.edu/~yang/ )...
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Astronuc reacted to Borg's post in the thread Medical New Alzheimer's Treatment Clears Plaques From Brains of Mice Within Hours with
Like.
I've been reading a bunch of articles in this month's Scientific American on Alzheimer's and ran across this article in a web feed that... -
Astronuc reacted to Ibix's post in the thread I How Can Photons Be Massless Yet Have Energy According to Einstein's Equations? with Like.
That formula is only correct for stationary massive objects. The general formula is ##m^2c^4=E^2-p^2c^2##, from which you can see that...
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Astronuc reacted to PeroK's post in the thread I How Can Photons Be Massless Yet Have Energy According to Einstein's Equations? with Like.
The equation ##E = mc^2## only applies to a particle with mass. And, indeed, that's its energy only when it is at rest. The full...
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Astronuc reacted to PeterDonis's post in the thread B Photon Energy Without Rest Mass – How? with Like.
It only applies to particles with rest mass that are at rest. See below. Yes. The general equation is $$ E^2 = p^2 c^2 + m^2 c^4 $$...
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NPR 'founding mother' Susan Stamberg has died https://www.npr.org/2025/10/16/1184880448/susan-stamberg-obituary For those outside the...
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Astronuc replied to the thread SpaceX SpaceX Starship development: 7th flight January 10.Looking back 10 years - https://www.physicsforums.com/threads/spacex-interplanetary-transport-system.887117/ One person who was key to...
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Astronuc replied to the thread Technical Analysis on Titan Sub (Titanic Sub).Titan submersible imploded due to poor engineering https://www.bbc.com/news/articles/cdeg7y4171xo Hull Failure and Implosion of...
