berkeman's latest activity
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berkeman reacted to Anthony1's post in the thread Undergrad How to make a theoretical model of a Blackburn pendulum more realistic with
Like.
I am modeling a Blackburn pendulum where the bob is much heavier than the string, so I treat the string as massless and inextensible. I... -
The latest in giraffe fashion:
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This one is worth a repeat.
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berkeman replied to the thread Where Do Simplified Models Stop Being Useful in Physics?.Projectile motion problems are often simplified by assuming no air resistance. That works fine for basic problems with low-velocity...
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berkeman replied to the thread hello everyone.Welcome to PF! :smile:
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I am Yug Ahuja, an undergrad from india preparing for entrance exam to get into college. I love physics, mathematics, computer science.
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berkeman reacted to cedricuk's post in the thread Undergrad How Do You Measure Energy Conversion Efficiency? with Like.
Thanks for pointing that out. This was intended as a general question about measuring energy conversion efficiency, rather than...
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berkeman replied to the thread New member :).Welcome to PF. :smile: For general technical questions, post them in the appropriate technical forum (start the thread by filling out...
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berkeman replied to the thread Kitten Lovers: Cuteness Overload.
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berkeman reacted to Baluncore's post in the thread Solderless SMA screw mounting RF issues with
Agree.
I would need to know the manufacturer and the part number of the connector. It appears the connector is physically attached to the PCB... -
berkeman replied to the thread Undergrad How Do You Measure Energy Conversion Efficiency?.Is this question in relation to your optical diffuser question from a day or two ago? If it's a general energy conversion efficiency...
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berkeman reacted to Astronuc's post in the thread Invisible microbes ‘mining’ toxic mine waste in the Flinders Ranges, South Australia with
Wow.
This subject was brought to my intention in the past day. It is of interest to many scientists. Apparently, various microbes have been... -
berkeman reacted to DaveE's post in the thread Renewable Energy Sources are Making Gains with
Informative.
Yes. They control the power flow by matching (leading slightly) the phase of the grid. So they are always sensing it, If their... -
berkeman replied to the thread Renewable Energy Sources are Making Gains.But how can these disconnect from the grid if they're just plugged into a wall socket. Do they somehow sense it the socket is powered...
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berkeman reacted to Dale's post in the thread Graduate The Planck scale, black hole interiors, observable universe and GR with Like.
Please don’t use AI. It makes your writing so unnecessarily long. It is obnoxious to read. That said, do you have a question?
