berkeman's latest activity
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berkeman replied to the thread Collection of Lame Jokes. -
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Thank you.
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berkeman reacted to Drakkith's post in the thread Lawn/Garden Determining Ramp Length for Ground Clearance with
Like.
Got some 6 ft ramps from a local store. Works perfect. -
Sorry if already posted.
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berkeman replied to the thread Collection of Lame Jokes.
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https://en.wikipedia.org/wiki/Rainer_Weiss https://news.mit.edu/2025/professor-emeritus-rainer-weiss-dies-0826...
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berkeman replied to the thread A Why do both poles of a radio pulsar emit radio waves?.Thread is reopened provisionally... @Line_112 -- You need to post links to the peer-reviewed journal articles that support what you are...
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berkeman reacted to weirdoguy's post in the thread A Why do both poles of a radio pulsar emit radio waves? with Like.
Why exactly? Do you know how Lorentz force works? What does changing the sign of ##\vec{B}## do to particles movement? Hint: magnetic...
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berkeman replied to the thread I Question about "A Group Epimorphism is Surjective".After a Mentor discussion this thread will remain closed. @elias001 -- please reread the PF rules, particularly the part about not...
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berkeman reacted to Drakkith's post in the thread Lawn/Garden Determining Ramp Length for Ground Clearance with Like.
Thanks all!
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berkeman replied to the thread A Why do both poles of a radio pulsar emit radio waves?.Thread is closed temporarily for Moderation...
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berkeman reacted to Janus's post in the thread A Why do both poles of a radio pulsar emit radio waves? with Like.
Pulsars "pulse" because their magnetic poles and rotational axis don't align. The radiation emitted from the magnetic poles is...
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berkeman replied to the thread A New Member Jurica.Welcome to PF; it's good to have you here. :smile:
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I am glad to be here. I was a physics student long time ago and didn't touch science and physics for 30 years. Now I am back to physics...
