Recent content by berkeman

  1. berkeman

    Student of Astronomy and planetary science

    Welcome to PF. :smile:
  2. berkeman

    >>I hope this message isn't too public If you want to have a more private conversation with...

    >>I hope this message isn't too public If you want to have a more private conversation with @sophiecentaur you can hover your mouse over his avatar and click on "Send direct message". That will start a conversation between just you two, as opposed to posting a Profile Message which is visible...
    • berkeman
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  3. berkeman

    Neurosurgeon for understanding a bit

    Yes, that is totally acceptable, Doctor. We mainly need to watch out for folks who try to use AI as a reference in the technical forums. Welcome, and it's good to have you here. :smile:
  4. berkeman

    Collection of Science Jokes P2

  5. berkeman

    Air compressor pump HP requirement?

    LOL, that confused me too. I had to use a Search on the thread to figure out where he got the 200 gallon number from. :smile: Just out of curiosity, though, why such a huge compressed air storage tank?
  6. berkeman

    Why Is Fan Suction/Intake So Weak Compared to Exhaust?

    Interesting YouTube video tracing out the airflow around a fan:
  7. berkeman

    High School Very high energy photons in space

    Due to a long history of problems with the OP, they are now gone from PF, so this thread will remain locked. Thanks for the great reply @Astronuc :smile:
  8. berkeman

    High School Very high energy photons in space

    Thread is closed for Moderation.
  9. berkeman

    Plumbing Clogged drain opening home remedy

    What does the bleach part do? Just curious. Also, did you do this after trying to snake the drain and that did not work for some reason?
  10. berkeman

    Machining Aerogel

    Have you tried that yet? Do they have some kind of Support link on their web page?
  11. berkeman

    What type of energy is actually stored inside an atom?

    After a Mentor discussion, the thread will remain closed. The OP's comments are borderline personal speculation, which we do not allow.
  12. berkeman

    New person here, where do I post my own personal hypothesis?

    After some cleanup, the thread will remain closed. @Legodudelol9a -- I will send you a DM with some possible forums you could try for posting your speculative ideas.
  13. berkeman

    Collection of Lame Jokes

  14. berkeman

    Electric power distribution from powerplant to homes

    I don't think high voltage distribution wires (in air on poles or towers) are coated with insulation. That would just add weight and cost, and not be needed for safety insulation purposes. Only the final 120V/240V wires that come down from the pole transformers to the homes would have...
  15. berkeman

    G'day

    Welcome to PF. :smile: Please keep in mind that we do not allow personal speculation at PF. We discuss mainstream science as published in peer-reviewed journals and mainstream textbooks. Please have a look through the PF rules (under INFO at the top of the page). Thanks.