Recent content by berkeman

  1. berkeman

    hello everyone

    Glad to have you here; Welcome! :smile:
  2. berkeman

    Undergrad Water ripples project help please

    I would start with a Google search on terms like water ripple waves, water waves, gravity waves in water (note: Not gravitational waves, which are generated by moving masses like black hole mergers). Probably Wikipedia.org is a good place to do some searching as well, and you can follow the...
  3. berkeman

    Hello

    Welcome to PF. :smile:
  4. berkeman

    Undergrad Water ripples project help please

    Since this is for a schoolwork project, this thread may get moved to the Homework Help section of PF. I'll leave it here in Classical Physics for now. What reading have you been doing on your questions? Can you post links to that reading and say which parts have you confused? What do you...
  5. berkeman

    Just a dreamer…

    Welcome to PF. Please be sure to read the PF rules, including the limitations on how you can use AI to post here. We also do not allow personal speculation here -- that is also in the PF rules (see INFO at the top of the page).
  6. berkeman

    guys I need help I have a question

    Woo-wee! Welcome to PF. It's great that you are so curious and interested in science topics at your age; keep it up! :smile: For general technical questions, post them in the appropriate technical forum (start the thread by filling out the form at the top of that forum) and include links to...
  7. berkeman

    Torque to turn a large Beam on a Rotisserie

    4225kg or 4225N? What kind of bearings? What friction numbers are we talking about from the bearings? What will you use to hold/clamp the rotational motion in the worst case where the CoG is offset horizonally from the main axis?
  8. berkeman

    Automotive Continuously Variable Transmission Idea

    I'm seeing straight-cut gears and differentials, but I'm not seeing anything that would imply continuous variability of the input/output gear ratio. Can you say more about what provides the continuously variable property? Thanks.
  9. berkeman

    Collection of Lame Jokes

    A little more Medic humor. And yes, I've been in a number of fire stations at dinnertime (not for dinner though). :smile:
  10. berkeman

    Hello from a physics enthusiast!

    Thanks for the suggestion, @.Scott -- looks like they have fixed their post. :smile: @Aloiz Burher welcome to PF! Please be sure to read the PF Rules (see INFO at the top of the page). We do not allow personal speculation or discussing unpublished work here. We discuss mainstream science as...
  11. berkeman

    Local-only E2EE is a data retention nightmare (Signal DB recovery)

    After a Mentor discussion, thread is reopened provisionally.
  12. berkeman

    Local-only E2EE is a data retention nightmare (Signal DB recovery)

    Thread is locked temporarily for Moderation...
  13. berkeman

    Graduate Quantum interpretations and indistinguishable elementary particles

    Welcome to PF, Tom. Please keep in mind that we do not allow AI to be used as a reference in the technical forums. You can read our policies on AI in the PF Rules (see INFO at the top of the page).
  14. berkeman

    High School Theory on universe expansion

    Thread will remain closed. @JackFmultiverse -- Please check your DMs.