russ_watters's latest activity
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russ_watters replied to the thread Undergrad Reference frames, center of rotation, etc.Consider a simple case*: you have an object like a ruler, sitting on a desk. You strike one end horizontally, perpendicular to it... -
russ_watters reacted to Dale's post in the thread Undergrad Reference frames, center of rotation, etc with
Like.
The center of rotation certainly can translate. Did you not see the plots that I posted? They show what it means. You can pick any point... -
russ_watters reacted to A.T.'s post in the thread Undergrad Reference frames, center of rotation, etc with Like.
The way to clear up that confusion is to learn the math, not endlessly go on about what your eyes see. Or you just forget about it and...
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russ_watters replied to the thread Undergrad Reference frames, center of rotation, etc.I'm a mechanical engineer, so I get it: I sometimes find the physicists' view of things to be pedantic. But you need to recognize that...
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russ_watters reacted to A.T.'s post in the thread Undergrad Reference frames, center of rotation, etc with Like.
Maybe it's a language problem, but you don't seem to get anything from the answers. You just keep asking the same question, that has...
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russ_watters reacted to jbriggs444's post in the thread Undergrad Reference frames, center of rotation, etc with Like.
I have never encountered the term "center of revolution" in the context of physics. Nor has Google, it seems. The references it found...
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russ_watters reacted to Stavros Kiri's post in the thread Stargazing Solar Activity and Space Weather Update thread with Like.
A SOLAR STORM IS HEADING DIRECTLY FOR EARTH: Strong G3-class geomagnetic storms are possible on Dec. 9th when a full-halo CME is...
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russ_watters replied to the thread High School Is this a coincidence?... (distances between planets).Welcome to PF! It's probably more than a coincidence but no real explanation has been found...
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russ_watters reacted to oz93666's post in the thread High School Generator shaft rotation through spring and magnet (Is this feasible in Physics?) with Like.
Over 50% of new bike sales are now electric , but very few have regenerative braking ... So chances are youre bike doesn't (recharge...
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Language belongs to all of us. It's not defined by "grammarians". It's very different from mathematics, where things are more clearly...
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There's a difference between being informal and wrong. Language isn't a historical relic. We must allow the possibility for usage to...
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russ_watters replied to the thread Electric power distribution from powerplant to homes.What you are saying is true for a simple circuit with one source and one load/resistor, but the power line isn't the only thing in in...
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russ_watters replied to the thread Net metering - hybrid solar inverter system question.They are expensive to operate (they need 24/7 staffing) so they are only financially viable if they serve very large buildings or...
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russ_watters reacted to sophiecentaur's post in the thread Undergrad Is energy really conserved? with Like.
How can you even suggest such an experiment? Where would you get two identical grinders with no (or at least equal) friction at every...
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The heat is different. If the experiment is done in an insulated chamber then the 10000 second chamber will have a higher temperature...