berkeman's latest activity
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berkeman reacted to marcusl's post in the thread Undergrad An intuitive reason for the definition of temperature via entropy and internal energy? with
Informative.
dS=dE/T. At low temperature, systems are highly ordered and a small energy input results in a relatively large increase in disorder. At... -
Started my first chemotherapy treatment yesterday. No side effects yet but it's still early. Here's a couple of pics commemorating the...
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You say po-tah-to, I say po-tay-to, he says...
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berkeman reacted to Astronuc's post in the thread Nuclear reactor design with refuel period of more than 20 years with Informative.
It's not so simple and straightforward. One has to maintain criticality and an appropriate power distribution, which may be...
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berkeman replied to the thread Hello from Germany – Interested in Cosmology and Torsion Models.Welcome to PF. :smile: Please be sure to read the PF Rules (see INFO at the top of the page). We do not allow personal speculation or...
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berkeman replied to the thread Introduction - CraftyRyte.Welcome to PF; it's good to have you here. :smile:
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berkeman replied to the thread Nuclear reactor design with refuel period of more than 20 years.Paging @Astronuc
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berkeman replied to the thread Undergrad Prove that 1 + NOT (1 + NOT x) = x.Is this question for schoolwork? If so, I can move the thread to the schoolwork forums.
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berkeman reacted to HanLi's post in the thread High school student with a passion for physics, looking to learn with
Like.
Thank you for the warm welcome and for pointing me to Insights! I've already started browsing and found some really interesting... -
berkeman reacted to PAUL GRAHAM's post in the thread Undergrad Compare Bending Resistance of Dimension Lumber used as Joist with Like.
Using plywood on three sides would make a strong support and significantly simplify the design. Most commercially available aquarium...
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berkeman replied to the thread Undergrad Compare Bending Resistance of Dimension Lumber used as Joist.I'm not able to parse that. The load needs to be transferred from the aquarium to the floor, no?
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berkeman replied to the thread Undergrad Compare Bending Resistance of Dimension Lumber used as Joist.Wow, that's amazing if you did those by hand. Nice. Still, I would be worried about racking. Can you add some cross braces for...
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berkeman reacted to WWGD's post in the thread Undergrad LHC To Announce Its Lepton Universality Violation Results On Tuesday (20-Dec-2022) with
Haha.
How can they have mass if they're not even catholic! -
berkeman replied to the thread High school student with a passion for physics, looking to learn.Welcome to PF. It's good to have you here. :smile: In addition to reading existing threads and starting threads to ask your...
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berkeman reacted to HanLi's post in the thread High school student with a passion for physics, looking to learn with Like.
Hello everyone, I'm a 16-year-old high school student from China. I've been fascinated by physics ever since I watched science...
