berkeman's latest activity
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https://en.wikipedia.org/wiki/Yang_Chen-Ning ( photo from http://insti.physics.sunysb.edu/~yang/ )... -
berkeman reacted to Bandersnatch's post in the thread Writing: Input Wanted How would an Earth-like Planet fair with a Uranus like moon system? with
Informative.
For this you can use the small angle approximation, which makes it a simple proportionality - if you start with the size, distance and... -
berkeman reacted to Ahmedbadr132's post in the thread I Are primordial fluctuations the source of all structure? with
Skeptical.
I do not think so Quantum fluctuations are not random . They are governed by equations. -
berkeman replied to the thread Infinitely ignorant, working on it.Welcome to PF. :smile:
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Grew up loving to read. Used to be good at math. Had phenomenal chemistry and physics teachers through high school and uni. Still...
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berkeman reacted to Haborix's post in the thread Severe Turbulence for Delta Flight 56 (NTSB report) with
Like.
I can do without ever experiencing that! On a more positive, it is amazing how robust commercial planes are to be able to withstand such... -
berkeman reacted to TensorCalculus's post in the thread Please give me some ideas... (hackathon problem statement) with Like.
Okay so a couple of questions: 1. "Open domain hackathon" refers to what, exactly? A hackathon without a set theme? 2. What was wrong...
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Hi everyone, I'm a curious Layman so don't mind me !
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berkeman replied to the thread Please give me some ideas... (hackathon problem statement).Also, paging @TensorCalculus who has experience running hackathons.
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berkeman replied to the thread Please give me some ideas... (hackathon problem statement).Can you give us a link to the hackathon rules or some other thing that says what the problem statement should contain?
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berkeman replied to the thread I How feasible is home radio astronomy?.After removing some insults by @parac-EU this thread is reopened provisionally and parac-EU is now thread banned from this thread.
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berkeman replied to the thread I How feasible is home radio astronomy?.Thread is closed for Moderation.
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berkeman reacted to AT_saavedra's post in the thread Help with Time-Independent Perturbation Theory "Good" States Proof with Like.
Thank you very much, your answer was very thorough
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berkeman reacted to davenn's post in the thread M7.6 Drake Passage; M7.4, M6.7 Philippines, M6.3 Papua New Guinea Earthquakes with
Wow.
yeah, a nice collection of events, i have the 1st 3 on the same page of my seismo but the order was .... M 7.4 - 20 km E of Santiago... -
berkeman reacted to Baluncore's post in the thread I How feasible is home radio astronomy? with Like.
I maintained and operated a radio astronomy observatory before I retired.