3 ms·
On a third hand, electricity is just movement of electrons. While DC is driving electrons down the line, AC is basically just when you vibrate them around. An
by limecherrysoda 2mo ago
On a third hand, electricity is just movement of electrons.
While DC is driving electrons down the line, AC is basically just when you vibrate them around.
Anyway my point is the field (no pun intended) may change drastically in the increasingly electrified future. I'm personally excited for more wireless power in areas, and the concept of ambient energy - harvesting power out of the already vibrating electrons in the static in the air.
- mjevans 2mo agoDC is super weird that way... The actual velocity of an electron down that line is, offhand, extremely slow compared to the speed of light. Think of DC more like you're trying to pump a frozen ice mixture drink (trying to avoid any of the major brand names) down a straw. If you melt it, that's loss to heat. If the pressure gets there that's DC current. The AC vibrations are the same thing except it's like the lever action on a steam locomotive. Translating the motor's spin into a back and forth wave in the line. This is why AC is rather useful for making other things spin or vibrate to the point of being emissive.
- leonidasrup 2mo agoGood intrpduction are Veritasium videos: "How Electricity Actually Works" https://www.youtube.com/watch?v=oI_X2cMHNe0 https://www.youtube.com/watch?v=oI_X2cMHNe0 "The Biggest Misconception About Electricity" https://www.youtube.com/watch?v=bHIhgxav9LY https://www.youtube.com/watch?v=bHIhgxav9LY
- perpetuallunch 2mo agoOne cannot simply bring up Veritasium without also honouring his arch nemesis ElectroBOOM. https://youtube.com/@electroboom?si=HqjCoJtrn6ci41uw https://youtube.com/@electroboom?si=HqjCoJtrn6ci41uw Others that deserve a mention: styropyro https://youtube.com/@styropyro?si=aPBPXdj42Oo0UzC2 https://youtube.com/@styropyro?si=aPBPXdj42Oo0UzC2 The Angry Pixie herder, Uncle Bumblefuck aka AvE: https://youtube.com/@arduinoversusevil2025?si=f1LHLwVdQTn0O8JB https://youtube.com/@arduinoversusevil2025?si=f1LHLwVdQTn0O8... And that guy with the multi gigawatt 150,000 volt Lorentz Cannon: https://youtu.be/lix-vr_AF38?si=P_WLCJFAUOD01pEF https://youtu.be/lix-vr_AF38?si=P_WLCJFAUOD01pEF I’m sure I forgot someone? AlphaPhoenix’s response to Veritasium: https://youtu.be/2Vrhk5OjBP8?si=vFlggT44kEyDKlKJ https://youtu.be/2Vrhk5OjBP8?si=vFlggT44kEyDKlKJ
- doubleg72 2mo agoSo pretty much the recommendations on the right we are all aware of already..
- perpetuallunch 2mo agoThank you for your contribution here today.
- vitally3643 2mo agoWireless power and ""ambient energy"" are incompatible with real physics. Sure, they're real phenomena that actually do exist, but the physics are such that they're almost entirely useless beyond extremely specific and very limited applications. These things have been known and studied for decades now, and the best use we have is charging your phone when you set it down on a special pad. Energy harvesting applications are good for sending a single radio packet once a week. It's just fundamental limitations of the universe. Anyone excited about wireless power or energy harvesting hasn't read any further than "wireless power and energy harvesting". They aren't what you think they are.
- limecherrysoda 2mo agoWhy the quadruple quote? At any rate... > the best use we have is charging your phone when you set it down on a special pad Wouldn't sell that short > It's just fundamental limitations of the universe You don't know what's possible and what isn't - who's to say they cannot figure out a way to tap into adjacent ambient energy, and so-on?? You might tap into a connection that is miles long, or mere feet long. It depends on how much you need. Or maybe future devices require far less. Open your mind