Blowing air out of your mouth, like blowing out a birthday candle, is just a DC form of talking. - eviltoast

Error being blown out of your mouth is similar to DC ( direct current ) and that it’s a continuous wave of air with frequency zero. While speaking is like AC ( alternating current), a longitudinal wave that moves back and forth at a variety of frequencies.

  • ExchangeInteraction@lemmy.worldOP
    link
    fedilink
    arrow-up
    1
    ·
    1 year ago

    Speech, like all sound, is a wave that moves back and forth parallel to the direction of motion. This is the context that I describe it as AC.