• 0 Posts
  • 14 Comments
Joined 1 year ago
cake
Cake day: August 10th, 2023

help-circle

    1. Light = energy, shorter wavelengths= higher energy. Blue light has a shorter wavelength than red light. UV has even more energy. X-Rays have a lot more energy. For reference in the visible spectrum were talking about maybe 1-4 eV (this may be wrong, I’m too drunk to look it up rn).

    2. If we want to produce light, the aim is to find an energy gap that has the exact energy gap that corresponds to the wavelength we’re interested in. Typically this corresponds to an electronic transition, i.e. an electron “jumps” into a higher orbital, on its way down it will emit the energy difference as light.

    2.1 X-Rays rn are produced by accelerating electrons onto a metal plate with high voltage. The impact of the electron “rips” out an electron in the close vicinity of the nucleus. Another electron will take the place of that electron, the energy gap associated with that process is large, which is why it produces X-Rays.

    1. If we want to produce LEDs that emit in the far UV range we have to find large energy gaps in materials which is difficult. We still have to have a way to get the electron across the energy gap using electricity.

    2. X-Ray LEDs are probably not realistic, as the energy of x-rays is so large that we have to rip out electrons from the close vicinity of the nucleus… which is already what we’re doing with X-ray tubes.



  • Why do y’all have to write in such a condescending/rude way?

    My point was Bluetooth is not better in every way and I stand by that (you seem to too).

    Personally, I have 2 pairs of headphones 1 pair of in-ears and 1 pair of over-ears, I use my over-ears for everything except band practice and gigs (where I use in-ears). Buying more headphones just so I can use them with my phone seems ridiculous to me.

    I am happy that you find joy in wireless headphones, and I’ll stop talking now in fear of summoning that Candybar Jerk again.




  • I don’t intend on turning this into some sort of fight but to me your comment has big

    “I don’t see the problem why can’t other people just have enough money”

    vibes (Also I checked and an adapter costs me 12$ on Amazon). I don’t think you intended it this way, so I’ll shut up now.

    As to my actual answer:

    • Leaving it on headphones is not an option to me (I explained it above)
    • Buying one for every jacket might work, but what do I do in summer?
    • Please correct me on this but afaik it’s not standardized
      • USB output is usually digital, while headphone obviously require an analog signal. I assume the vendors just use certain pins in the USB jack for transmitting the analog signal while keeping the rest grounded.
      • I know for certain that Samsung adapters don’t work on OnePlus phones for example.

    I could go on, but there’s honestly no point. We’re different people with different uses for our phones/headphones. I won’t buy a phone without a headphone jack as long as I still have wired headphones.


  • I have 2 main problems with that:

    • My headphone cable is long and sometimes it gets tangled in all sorts of places. The adapters are small and flimsy, if I leave them on the cable I assume they’ll break soon. I have no problems with a broken headphone cable as it is an easy and cheap fix. I don’t think the adapters are seriously fixable tho.
    • Everything else uses a headphone jack everywhere. I have yet to see a use for USB-C to audio jack anywhere else. Which makes sense as USB is digital and audio is analog. I assume many people have no use for headphones outside of their phones, I am not one of those people.





  • Mo5560@feddit.detoTechnology@lemmy.worldSpotify re-invented the radio
    link
    fedilink
    English
    arrow-up
    6
    arrow-down
    2
    ·
    1 year ago

    I don’t know why anyone would give Spotify money when…

    Frankly, I do because I share a family account with a bunch of people I haven’t spoken to since high school my family. The amount of money I pay is absolutely negligible for me, it’s less than what I give to homeless people on the street.

    I tried quitting Spotify because I really do hate it for a number of reasons. Apple Music was pretty shite on Android (and Linux). I also tried living without a streaming service, but ironically a lot of smaller bands don’t release their music through anything but the popular streaming services. Piracy also sucks when you can only download popular music at best.