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Joined 8 months ago
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Cake day: March 31st, 2025

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  • my background in biochemistry makes me think it’s almost guaranteed to be impossible, so i don’t worry about it.

    however, in hypothetical case it isn’t, i’d argue that it would be proper to destroy this technology in all cases along with inventors, because it would be horridly expensive initially, and first people to get it would be people like peter thiel and larry ellison. there was a recording where putin and xi admitted that they are also interested. then what you’ll get would be class of immortal oligarchs. planck once said, progress in physics happens one funeral at a time, it’s really more general than just physics, and you can say goodbye to any progress from that point on







  • here if you need anything over certain power (6kW; depends on country i guess) you need a three phase installation, and even if you get single phase, it’s really handled as three phase split between single phase customers (a block gets three phase supply, then splits flats in three groups, each group gets connected to one phase). this gets supplied by a distribution transformer that might serve somewhere around 200 people per (in residential areas)

    i understand that sometimes americans also get distribution like this, with 208/120 three phase coming from substation, without 240v available









  • transformers are not the only way to do this, and some other circuits can be used instead. if you take a transformer with 1:2 winding ratio, then if on one side current is 1 and voltage is 1, then on the other current will be 0.5 and voltage 2, which means that impedance increases 4x. in EFHW, it’s 1:7 winding ratio and impedance ratio is 49x, which works for end-feeding a half-wave dipole, just as expected (from 50 ohm to ~2500 ohm). that transformer is a limitation on power usable in this antenna and main reason to use this type of antenna is mechanical

    most importantly, transformers work nicely only if you have real impedances, so your antenna has to be resonant anyway. l- or pi-network tuner will also handle complex impedances so doublet or random wire will work nicely with it, as long as you can accept weight and losses in tuner