the.com/sight
the only sense that travels at the speed of light to reach you
means The faculty of seeing — the ability to perceive things with the eyes — or, more loosely, the thing seen and the act of looking at it.
from From Old English 'sihth' or 'gesiht,' meaning the thing seen and the faculty of seeing, built on the same Germanic root that gives us 'see' (Old English 'seon'). It's a close cousin of Dutch 'zicht' and German 'Sicht,' all springing from a Proto-Germanic word for vision. So the word for the act and the word for the eye-power grew up together, the way a glance and the thing glanced at are really one event.
- upside down
- eyes project flipped images; the brain rotates them
- blind spot
- each eye has a hole you never notice
- million colors
- humans distinguish roughly ten million shades
- backwards wiring
- light passes through nerves before hitting receptors
- brain hog
- vision uses about a third of your cortex
niagara falls — 188-foot waterfall between canada and usa, 750,000 gallons of water per second
taj mahal — marble mausoleum in agra, india built 1632-1653, unesco world heritage site
northern lights — aurora borealis visible in alaska, norway, iceland caused by solar wind interactions
mount kilimanjaro — 19,341-foot snow-capped peak in tanzania, africa's highest mountain