the.com/power lines
the world's least private way to deliver something invisible to everyone at once.
means cables strung between towers that carry high-voltage electricity from power plants to substations and homes.
from grew out of the 1880s war of currents, when edison's dc and tesla's ac fought for the grid — ac won because it travels long distances without dying, hence the towers marching across continents.
voltage drophigh voltage used specifically to reduce energy loss over distance
humming soundcaused by corona discharge, air literally ionizing around the wire
bird safetybirds survive by not touching two wires or ground at once
blackout dominoone line failure can cascade into region-wide grid collapse