berkeman's latest activity
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berkeman reacted to Ibix's post in the thread High School Contradictions in the Distribution of Gamma-Ray Bursts with
Like.
Indeed. That's why he needs to do some maths. Gamma ray scattering by the interstellar medium is a key plank in his belief - he needs it... -
berkeman reacted to GlitchedGluon's post in the thread Advice for Physics Olympiads with
Informative.
You may also be interested in checking out Kevin Zhou's webpage: https://knzhou.github.io/ He has coached the US Physics Team for some... -
berkeman reacted to CrysPhys's post in the thread Studying Interested in Astronomy as a Freshman with
Haha.
Picky, picky. It's stuff like this that make physicists such hot-in-demand party companions. :rolleyes: -
berkeman reacted to CrysPhys's post in the thread Studying Interested in Astronomy as a Freshman with Like.
Since you're too young to drive, you are dependent on your parents for transportation; so there's not much you can do about that. But...
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berkeman reacted to mezzo-piano's post in the thread Studying Interested in Astronomy as a Freshman with Like.
Thank you for the suggestions! My school doesn't have an astronomy club as far as I know, but that actually sounds quite fun. Since you...
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berkeman reacted to Greg Bernhardt's post in the thread Praise 2025 PF Member Awards Ceremony with Like.
It's been another incredible year spent on PF! Thanks to all contributing members for making it special! This year we're coming upon 25...
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berkeman reacted to Baluncore's post in the thread Graduate Unsolved Problems in Near Surface Geophysics with Like.
Mineral exploration is multidimensional. You need petrology, geochemical, and structural geology, with geomorphology, to identify...
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I am saddened immensely by this news. Phinds and I both joined within a few months of each other and he was one of my favorite and most...
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My special thanks to Fresh42, Mark44, Bvu, Perok, SammyS, Haruspex, Orodruin, Chestermiller, WWGD, Martinbn, and the other person from...
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berkeman replied to the thread Undergrad Capacitor Voltages at t = 0: Zero or Split?.What time constant do you calculate with ##R=1p\Omega##?
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berkeman reacted to untilthecern's post in the thread High School Questions about the structure of dark matter with Like.
So we can't assume the thing like that. got it
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berkeman reacted to untilthecern's post in the thread High School Questions about the structure of dark matter with Like.
I'll check the course you mentioned, thanks
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berkeman reacted to Nugatory's post in the thread High School Questions about the structure of dark matter with Like.
There’s no “if” here, dark matter is defined to be the stuff we haven’t seen yet that is interacting with the mass we have seen. It...
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berkeman reacted to Dale's post in the thread Undergrad Capacitor Voltages at t = 0: Zero or Split? with Like.
In your sim you added R2. This is perfectly reasonable to do, but it is no longer the circuit that the argument is about. Once you add...
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berkeman reacted to PeterDonis's post in the thread Alien life, probabilities, and interstellar propagation of human life with Like.
In half a century or so. That's an extremely short time on the scale of human history. Sure, but the time frames you're giving for when...