Lnewqban's latest activity
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Any instantaneous linear momentum of a particle on one side of the wheel is exactly balanced by an opposite instantaneous linear... -
Lnewqban replied to the thread Engineering Engineering Timber Beam Stress Calculation Help.Welcome! You are showing us many photos of the same corner, but we will need to see different angles, in order to provide you with an...
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You have it backwards. It is the angular momentum vector that points along the spindle. Consider an element of mass ##dm## on the...
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Lnewqban replied to the thread What force causes precession?.Could we compare your example to a bicycle wheel with its hub or bearings and natural axis of rotation not being perpendicular to the...
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Please study and understand the diagram on the right that uses the right hand rule to find the direction of the angular velocity vector...
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By the spindle I meant the axis of the top that passes through the little beam at the top. I know the top could theoretically rotate...
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Lnewqban replied to the thread What force causes precession?.Could you please explain "the spindle of the top" a little more in detail? Which other way do you believe it could rotate and why?
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Lnewqban replied to the thread What force causes precession?.Copied from: https://courses.lumenlearning.com/suny-osuniversityphysics/chapter/11-3-precession-of-a-gyroscope/
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Lnewqban replied to the thread What force causes precession?.Welcome! Your attached diagram can't be seen for some reason. Try Control+P to insert the image, please. Regardless explanations or...
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Not really, except for the eventual small radial centripetal force to make the center of mass go in circles slowly. But you can make...
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Lnewqban replied to the thread Space Stuff and Launch Info.I had a chance to see it in real time while I was driving Northbound 30 miles South of Cape Canaveral. Thank you for posting!
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Second attempt to launch Falcon Heavy in 1 hour, this time the weather is better: https://www.spacex.com/launches/viasat3f3
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Lnewqban reacted to haruspex's post in the thread Engineering Graphical Four Bar Linkage question with
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It confirms that the position you measured the 134° from is purely illustrative. It is not relevant to the actual question. Just use... -
I worked up the general case for integer ##n## overlapping circles. Here is the Desmos page; The red circle is the generator of the...
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Lnewqban reacted to jedishrfu's post in the thread Challenge MIT Announces the Largest Collection of Olympiad Math Problems with Like.
https://news.mit.edu/2026/mit-scientists-build-worlds-largest-collection-olympiad-level-math-problems-open-0424 MIT researchers have...
