berkeman's latest activity
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berkeman replied to the thread Help with leaf electroscope for school use please!.Welcome to PF. That would seem to be a good thing to try. You could even try drying rice in an oven and then quickly putting that into... -
berkeman reacted to Ozymandiac's post in the thread Graduate Kerma from neutron irradiation with
Like.
Thank you very much, Astronuc. I think this has cleared everything up for me. By the way, the video you linked to uses figures (by... -
berkeman reacted to Gleb1964's post in the thread Undergrad How do I stretch a laser from a beam into a sheet? with
Informative.
There are standard optical components used for generating lines from laser beams, known as Powell lenses. These lenses are manufactured... -
berkeman reacted to pinball1970's post in the thread Why Are You Still Here? A Curious Question with Like.
For me, mostly reading posts, threads then following up where I can on references given by the experts. All your above points also to...
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berkeman reacted to mathwonk's post in the thread AI and Ethics in Journalism: The Sports Illustrated Scandal with Like.
Not sure this is the right thread for this comment, which concerns the risk of AI generated content in the public domain, perhaps a...
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berkeman reacted to Chestermiller's post in the thread Undergrad What thermal cycle would describe the action of a candle carousel? with Informative.
There is no cycle involved. You simply heat the air and gases to cause them to expand and make the propeller above to rotate.
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berkeman reacted to Astronuc's post in the thread Why Are You Still Here? A Curious Question with Like.
As Greg has mentioned in the past, caring and sharing with the community, as well as the intellectual stimulation, and learning...
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berkeman reacted to Hornbein's post in the thread Why Are You Still Here? A Curious Question with Like.
Politics, spam, and silly beliefs are banned and rudeness is discouraged. These rules are diligently enforced. Such service is rare on...
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berkeman reacted to Astronuc's post in the thread Graduate Kerma from neutron irradiation with Informative.
Ref: https://recherche-expertise.asnr.fr/sites/default/files/documents/professionnels_sante/documentation/syllabus_chapitre_2.pdf The...
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For me, resistance would be futile.
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berkeman reacted to JT Smith's post in the thread Why Are You Still Here? A Curious Question with
Haha.
I enjoy pedantically correcting minor errors of virtual strangers I will never meet in person. For example, your first bullet item... -
berkeman reacted to Averagesupernova's post in the thread High School Analog power supply output question with Like.
@Patch Cabbage do you realize that a correctly configured pass transistor(s) act to reduce ripple? Apparently not and apparently the...
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berkeman replied to the thread Thanks to the creators and maintainers of this forum, happy to be here.Welcome to PF, Mark. :smile:
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berkeman reacted to pervect's post in the thread Undergrad Can a Gyroscope in a Satellite Detect Orbit? with Informative.
There's a couple of different questions here. Basically, using devices that spin (such as the Forward Mass detector), can detect...