Recent content by Swamp Thing

  1. Swamp Thing

    Raspberry Pi 5 -- Start up USB Wifi Dongle on boot

    The onboard adapter has a smaller range than the dongle. The dongle has an antenna like the ones on routers etc. and has a somewhat greater range.
  2. Swamp Thing

    Raspberry Pi 5 -- Start up USB Wifi Dongle on boot

    I bought a USB WiFi adapter that I want to use on a Raspberry Pi 5 running RP OS. It works fine if I plug it in after booting, but doesn't start up automatically on boot. It does get listed by lsusb after booting. How can I set it up so that it consistently starts up and connects to my router...
  3. Swamp Thing

    High School Mass & energy increments a la e = mc^2

    So if I understand correctly, when we want to calculate the acceleration of a charged bound system under a certain field, we have to plug in the equivalent mass of the binding energy manually. There is no way the exact acceleration can fall out automatically from some more fundamental...
  4. Swamp Thing

    High School Mass & energy increments a la e = mc^2

    I was not trying to compare the atom mass with the total mass of its component bits and bobs. I was trying to compare two atoms or ions in which at leas one electron in one atom or ion is at a higher energy level than its counterpart in the other atom or ion.
  5. Swamp Thing

    High School Mass & energy increments a la e = mc^2

    Then is there anything specific to which we can attribute the extra mass, or is it just somehow acquired by the whole system in some "holistic" way? Edit: For example, take an ion that has all electrons in their lowest possible levels and another ion that has one excited electron. Presumably...
  6. Swamp Thing

    High School Mass & energy increments a la e = mc^2

    When we consider the mass difference between an excited atom and an atom in the ground state, is it possible (or even meaningful) to try and drill down and say exactly where the extra delta(mv^2) resides in the excited case? For instance, can we say that there are more virtual photons (or maybe...
  7. Swamp Thing

    Collection of Lame Jokes

    I still don't understand.
  8. Swamp Thing

    Collection of Lame Jokes

    Um, what actually happens when the Schroedinger's cat detects a photon from the enemy? ... Never mind. I don't want to know.
  9. Swamp Thing

    Today I Learned

    TIL that certain marine animals "steal" chloroplasts from marine plants, after which they can live on sunlight for a pretty long time. https://youtube.com/clip/Ugkxy3wH7ud6Cz15AGUej2NeEgADp-hm6xK7?si=h5C9r0lmHGKulVJX Edit: The stolen chloroplasts are called kleptoplasts, and the propensity to...
  10. Swamp Thing

    What is this metal insert for in a desk?

    This engineered wood table has metal inserts like this one fitted on the side and back boards, near the corners. Each board is 10 mm thick and the insert doesn't show on the other side of the board (the side facing outwards). I can also see an insert on the board that forms part of the chest of...
  11. Swamp Thing

    Random Thoughts 7

    This cardboard box has a little tab on the big tab that keeps the "lid" flap closed by fitting into a slot on the flap. The little flap helps you to pull the big tab out of the slot more easily when you want to open the box. This reminded me of "servo tabs" on certain aircraft --- little tabs...
  12. Swamp Thing

    Insights Thinking Outside The Box Versus Knowing What’s In The Box

    If Archimedes and Galois can make the list, then maybe so can someone who is generally in contact with the scientific zeitgeist around the discipline of their breakthrough, rather than growing up on a pre-contact intellectual island. In that case, how about Janos Bolyai and Ramanujan?
  13. Swamp Thing

    Collection of Lame Jokes

    "Airplane-Shaped Kids Xylophone Toy - 8-Tone Percussion Instrument " . .. A winged instrument?
  14. Swamp Thing

    Audacity : Record stereo that is playing in browser

    I will look up more info on pulse config and see if there is something that helps, thanks.
  15. Swamp Thing

    Audacity : Record stereo that is playing in browser

    I am running Audacity on a Raspberry Pi 5. I am following the steps given here https://manual.audacityteam.org/man/tutorial_recording_computer_playback_on_linux.html trying to record in Audacity a stereo track playing in Chromium browser. This sound is concurrently being sent to a speaker via...