berkeman's latest activity
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berkeman reacted to russ_watters's post in the thread Peltier thermopar for hand heat charging battery with
Like.
That isn't true. The entire body puts out about 70W of heat. The surface area of a hand is probably 1% of the entire body. And... -
berkeman reacted to Razvan Mihai's post in the thread Our Beautiful Universe - Photos and Videos with Like.
M 51. 4 hours total integration (2 nights), with Seestar S50. Processing and editing with Pixinsight and SetiAstroSuite. Ploiești...
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berkeman reacted to Dale's post in the thread Graduate How to fix Relativistic QM so it's consistent? with Like.
@ChrisF We appreciate the respect and the caution. We do not provide any form of pre publication support here. It needs to be published...
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berkeman reacted to Razvan Mihai's post in the thread Hello. I am a 60 year old person interested in astrophotography. with Like.
I am interested in astrophotography and scientific topics. English is not my native language.
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Seems legit, based on the temp's we have been having lately
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berkeman replied to the thread Peltier thermopar for hand heat charging battery.Sorry, that did not translate very well and I'm not able to parse it. Please try again with more words? Please show us your...
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berkeman replied to the thread Peltier thermopar for hand heat charging battery.Can you show us your calculations that support this? How much energy do you get out of a Peltier thermoelectric generator with a human...
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berkeman replied to the thread Hello! New non-student here!.Welcome to PF. :smile: I will send you a DM with some websites that do allow speculation. We definitely do not allow personal...
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I also don’t have any serious education behind me. I also like to let my imagination meander wildly. Be aware though, that this forum is...
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berkeman replied to the thread Peltier thermopar for hand heat charging battery.What kind of battery are you wanting to charge? Trying to use energy from the heat of your hand will not yield you much for trying to...
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berkeman reacted to TensorCalculus's post in the thread Praise 2025 PF Member Awards Ceremony with Like.
These are both such brilliant compliments - I'm very flattered and I just hope I can keep it up, thank you!!
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berkeman reacted to jedishrfu's post in the thread Undergrad "Alien objects", Stillwell's "Reverse Mathematics" with
Informative.
When Stillwell says there are alien objects, he means the objects that mysteriously appear when you strengthen an axiom. Applying some... -
berkeman replied to the thread Hey alright more physicists.Welcome to PF! You've come to the right place. :smile:
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I got my degrees in general physics and geophysics and it’s been a long time since then and I am having a hell of a time finding people...
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berkeman reacted to PeroK's post in the thread High School Individual photons or electrons on a screen? with Like.
What you need is a Photo(n)multiplier: https://en.wikipedia.org/wiki/Photomultiplier_tube
