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einfach_orangensaft@sh.itjust.works to Science Memes@mander.xyzEnglish · 2 days ago

50ohm goes brrrrrr

sh.itjust.works

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50ohm goes brrrrrr

sh.itjust.works

einfach_orangensaft@sh.itjust.works to Science Memes@mander.xyzEnglish · 2 days ago
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  • marcos@lemmy.world
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    2 days ago

    Just to point out, because it’s bothering me way more than it should…

    But the electric and magnetic peaks align with each other’s valleys, not with each other’s peaks.

    • ChaoticNeutralCzech@feddit.org
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      33 minutes ago

      No, they fucking shouldn’t

      https://en.wikipedia.org/wiki/Maxwell's_equations#Vacuum_equations,_electromagnetic_waves_and_speed_of_light

    • captainlezbian@lemmy.world
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      12 hours ago

      Yeah, because it’s not pulsing in intensity, it’s pulsing between which kind of energy it’s being

    • tate@lemmy.sdf.org
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      11 hours ago

      You’re describing circular polarization. It’s not the only way.

    • Techlos@lemmy.dbzer0.com
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      11 hours ago

      Maybe it’s showing polarization superpositions of the E-field?

    • FishFace@piefed.social
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      1 day ago

      If two waves of the same frequency align with each others’ valleys, they align with each others’ peaks. Do you mean they should be aligned peak to valley? I don’t know how you’re deciding which direction of the axes is positive and which is negative though.

      • ChaoticNeutralCzech@feddit.org
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        16 hours ago

        deleted by creator

        • FishFace@piefed.social
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          16 hours ago

          Uh, no?

  • Remember_the_tooth@lemmy.world
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    2 days ago

    I get the reference to the original meme. I don’t understand the EM spectrum component, though.

    • deranger@sh.itjust.works
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      2 days ago

      They wish they were in an antenna and going out as radio waves, but instead they’re in a dummy load and not going anywhere. 50ohm is a common antenna impedance.

      • Remember_the_tooth@lemmy.world
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        2 days ago

        Thanks. That puts me on the right track.

        https://www.onallbands.com/ham-radio-101-dummy-loads-smart-idea/

    • hedgehogging_the_bed@lemmy.world
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      2 days ago

      Had to go get my radio-tech spouse. His reply “Oh, that’s the dumb name for a terminator…”

      Apparently “dummy load” isn’t what they call them in the USAF

      • einfach_orangensaft@sh.itjust.worksOP
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        1 day ago

        i might be wrong here but i think a dummy load is different from a terminator, they both 50 ohm, but a terminator is more like a connector cap, while a dummy load is designed to dissipate heat and can often take many watts of power over extended time without starting glow

        • Eranziel@lemmy.world
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          14 hours ago

          That’s my understanding as well. I’ve seen dummy loads used when testing transmitters at power so that nothing gets too hot. They usually have a big aluminum heat sink.

  • BillyClark@piefed.social
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    2 days ago

    They can’t wait anyways because they do not experience the passage of time.

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