Recent content by QuarkyMeson

  1. QuarkyMeson

    China plans world’s first fusion-fission power plant

    Even with recycling you'd still need underground storage at some point though right? This is the same with a fusion|fission hybrid reactor too. Eventually you're going to have long lived nuclear products that just aren't useful for anything anymore. The US policy of not reusing spent fuel...
  2. QuarkyMeson

    USB tethering the Raspberry Pi 5 to Android Phone (no DNS)

    Ah you'd want to do nmcli device status, make sure its there. If its unmanaged (yes probably) you'd have to tell networkmanager to manage it. Then you can create a profile for it. Not really important since you already have a solution thats working for you.
  3. QuarkyMeson

    USB tethering the Raspberry Pi 5 to Android Phone (no DNS)

    Try adding in the nameserver 192.168.25.1(assuming its same ip) to resolv.conf. It won't persist, but it might need to use phone gateway as nameserver. If this works though, I think the real fix is not use dhclient and use NetworkManager.
  4. QuarkyMeson

    Relativistic electrodynamics: transformation of electric dipole moment

    For the first bit, It's just the nature of what a magnetic dipole moment is and comes from the cross product. For the second but, it's not being ignored, it's actually the relevant part. I wanted to give a better answer, so I've been reading up and found this article: MDM This is for the...
  5. QuarkyMeson

    USB tethering the Raspberry Pi 5 to Android Phone (no DNS)

    Yeah, resolv.conf is regenerated on reboots/when networkmanager sees changes. Did it start working after it was recreated?
  6. QuarkyMeson

    USB tethering the Raspberry Pi 5 to Android Phone (no DNS)

    Ok, so NetworkManager isn't managing this connection, but its still generating the resolv.conf... Can you try this? In resolv.conf can you add the nameserver 192.168.25.1? Can you also run ls -l /etc/resolv.conf? Could you also tell me whats in /etc/network/interfaces?
  7. QuarkyMeson

    USB tethering the Raspberry Pi 5 to Android Phone (no DNS)

    Hmmmm. Can you check Networkmanager.conf? Does that look right? This is the problem I have with linux, there are too many ways to skin this cat. If you aren't actually using NetworkManager then none of this matters. I've only ever used NetworkManager though because it's the simplest to deal with.
  8. QuarkyMeson

    USB tethering the Raspberry Pi 5 to Android Phone (no DNS)

    I've had this problem a bunch of times before on compute 4. You can ping 8.8.8.8 or 1.1.1.1 or whatever but you aren't able to completely resolve hostnames. So if you tried ping google.com or ping github.com you'd be unable to reach either. What normally fixes this issue for me is viming into...
  9. QuarkyMeson

    Programs Materials Engineering Undergrad Reflection

    By teach yourself Taylors what did that entail exactly? The main purpose of Taylor’s Classical Mechanics is to teach the calculus of variations, Lagrangian mechanics, and coordinate transformations. Depending on the course, you might also cover Hamiltonian mechanics or special relativity. The...
  10. QuarkyMeson

    Relativistic electrodynamics: transformation of electric dipole moment

    Yes, the perpendicular component doesn't change. ##dV = \frac{dV'}{\gamma}##, so you plug that back in and you get ##\frac{1}{2}\vec{p'}_{\perp} \times \vec{v}##.. which obviously matches the non relativistic expression. (This isn't a great check here since what you wrote before also matches the...
  11. QuarkyMeson

    ChatGPT Examples, Good and Bad

    I think it was allowed during the test because the professor wanted to make it open-book. Many students use digital texts, and he knew some people would be tempted to consult resources that weren’t permitted, so he simply made everything fair game. It was surprising to me that, with minimal...
  12. QuarkyMeson

    ChatGPT Examples, Good and Bad

    Junior Emag 2, so Griffiths chapter 8 till 12.
  13. QuarkyMeson

    ChatGPT Examples, Good and Bad

    I don't know if I'm particularly proud of admitting this... but we had exams in which chatgpt was allowed. They were 50 minute exams. Open whatever. On the first exam I did it without using chatgpt or other resources and scored the median. On the second exam I decided to try punching every...
  14. QuarkyMeson

    Relativistic electrodynamics: transformation of electric dipole moment

    Arbitary should be fine, infact you don't even need to pick a basis for this. So dV = dLdA, you can now choose dL so that it is parallel and dA so that its perpendicular. How would dL change under the transformation? Then go back to dV' and you're basically done.
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