berkeman's latest activity
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berkeman replied to the thread Collection of Lame Jokes.https://www.amazon.com/Schylling-PBG-Paddle-Ball-Game/dp/B000MVE52Q?tag=pfamazon01-20 -
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berkeman reacted to Nugatory's post in the thread I Is there anything inside a black hole? with
Wow.
@Green dwarf did we not go through all of this with you ten years ago... -
berkeman reacted to Colin Wilson's post in the thread I Energy requirements of a 4 wheel drive boat with
Like.
4 wheel drive amphibious boat (swamp buggy?) My problem is trying to calculate the amount of energy, or a good estimate, that would be... -
berkeman reacted to russ_watters's post in the thread What type of lab to go to for testing my home's tap water? with
Informative.
I have a TDS meter too, which is useful, but the kits you get with test strips can test for dozens of different contaminants. Example: -
berkeman replied to the thread Chain falling out of a horizontal tube onto a table.The link to the "LaTeX Guide" is below the Edit window on the left.
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berkeman reacted to Green dwarf's post in the thread I Is there anything inside a black hole? with Like.
Thank you, @martinbn, @PeroK and @Ibix.
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berkeman reacted to renormalize's post in the thread What is this metal insert for in a desk? with
Agree.
Actually they do hold the wood pieces together. They're called Cam Lock fasteners: (from... -
I’ve signed up because I’m on educator and time to time have questions that I have difficulty figuring out
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berkeman replied to the thread New member.Welcome to PF; you've come to the right place. :smile:
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berkeman replied to the thread Foundations A rigorous approach to learn Mathematics.The Mentors/Admins have no indication of that yet.
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berkeman replied to the thread New Member :).Welcome to PF! :smile:
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Hi! I’m new here and joined seeking assistance with self study of general relativity. Im excited to participate in discussion and learn...
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berkeman reacted to mathwonk's post in the thread Foundations A rigorous approach to learn Mathematics with Informative.
Please forgive me for reminding you that it is much easier to make a list than it is to read profitably through that list. In my...
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berkeman replied to the thread Optical Building a Raman-spectrometer…..The fire extinguisher is a nice touch. :smile:
