the.com/night vision
Turning scraps of starlight into a glowing green reason not to trip over things.
means The ability—whether biological, through adapted eyes, or technological, through image-intensifying devices—to see in low light by amplifying the faint light already present.
from A transparent compound of 'night' and 'vision,' first used plainly to describe eyes adjusting to darkness, then borrowed in the 20th century as military and surveillance tech learned to amplify starlight and infrared into usable images—giving the old phrase a distinctly electronic, glowing-green second life.
- the glow
- phosphor screens render everything in ghostly green on purpose
- green choice
- human eyes distinguish green shades better than any other color
- thermal is different
- detects heat, not light, so it works in total darkness
- amplification factor
- some scopes boost available light over 50,000 times