the.com/radius
the line that builds every circle by refusing to ever turn.
means The straight distance from the center of a circle or sphere to its edge — and, by extension, the range of reach around any central point.
from From Latin radius, meaning a rod, spoke, or ray of light — the same word the Romans used for the spokes of a wheel fanning out from the hub. That image of straight lines radiating from a center carried into geometry, and the bone of the forearm picked up the name too, for lying alongside the arm like a thin rod. The English word ray is a cousin from the same source.
- bone twin
- also a forearm bone you rotate hands with
- latin root
- means spoke of a wheel
- half power
- square it and pi makes area
- event horizon
- black holes have a Schwarzschild radius of no return
earth's radius — 6,371 kilometers from center to surface
bohr radius — 0.53 angstroms, the most probable distance of electron from hydrogen nucleus
schwarzschild radius — event horizon distance around black holes, determines their size