berkeman's latest activity
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berkeman reacted to AlexB23's post in the thread How to measure the diameter of a shaft without a caliper? with
Like.
Is there a way to use a piece of paper or tape with tick marks to measure the circumference of the shaft? Ideally, I recommend that you... -
berkeman replied to the thread Simple kinematics problem — falling from a geostationary satellite.Thread is reopened provisionally so that the OP can respond to my DM in-thread. Short leash.
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berkeman replied to the thread Simple kinematics problem — falling from a geostationary satellite.Thread is closed temporarily for Moderation...
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berkeman replied to the thread Undergrad Simplified Special Relativity: Looking to get roasted on this.Sounds like two great ideas going forward. Always ask questions and learn from the answers from knowledgeable folks. :smile:
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berkeman reacted to DavidMiranda's post in the thread Undergrad Simplified Special Relativity: Looking to get roasted on this with Like.
Thank you for a thoughtful reply. I'm not sure the fora/fori (I never get the case right) you mentioned will be able to help, but it is...
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berkeman left a message on PorscheOne's profile.Dat's not a Porsche! (your avatar) :smile:
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berkeman reacted to PeterDonis's post in the thread Simple kinematics problem — falling from a geostationary satellite with Like.
In an inertial frame centered on the Earth, in general, its trajectory will be an ellipse (assuming it never achieves escape velocity)...
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berkeman reacted to anuttarasammyak's post in the thread Simple kinematics problem — falling from a geostationary satellite with Like.
Such a tower is considered as the space elevator
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berkeman reacted to PeterDonis's post in the thread Simple kinematics problem — falling from a geostationary satellite with
Agree.
It doesn't. See post #14. -
berkeman reacted to DaveC426913's post in the thread Misc. Giving dog access to go potty when we're out with Like.
Yes. I plan to build a catio.
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berkeman reacted to jack action's post in the thread Misc. Giving dog access to go potty when we're out with Like.
A doggy door accessing an outdoor cage where the giant, stinky doggy litterbox is. For example: By using the keywords catio and...
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berkeman replied to the thread How would air work on the plane of water?.I may regret stepping into this... A "plane of water" implies a surface. Well, which is it young feller? (what movie is that from?)...
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berkeman replied to the thread Misc. Giving dog access to go potty when we're out.Maybe consider adding weight/resistance and maybe a magnetic assist hold-closed thing to a traditional dog door, so that the cat can't...
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berkeman reacted to A.T.'s post in the thread Undergrad Confused about the conservation of angular momentum with Like.
Whatever his goal was, I don't think he is doing a good job on either front. Making things that look externally like they spin up in...
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berkeman reacted to Bandersnatch's post in the thread Method of storing energy on the Moon with
Haha.
All those seas on the Moon, and nobody's suggested pumped hydro? *runs away*