the.com/candela

the SI unit that measures brightness in the currency of a single burning candle

means The SI base unit of luminous intensity, measuring how brightly a source shines in a given direction.

from Straight from the Latin candela, "candle," itself from candere, "to shine or glow white-hot" — the same root that warms candid (originally "shining white") and incandescent. The unit's name is no accident: it was deliberately chosen to anchor the measurement of brightness to the humble glow of a single candle flame, the historical benchmark of light.

latin root
means candle, literally
defined by
a fixed frequency of green light
human eye
unit tuned to where we see best
car headlight
pumps out tens of thousands of candelas
old name
once called candlepower
for instance

international candle — standard unit of luminous intensity adopted by the international commission on illumination in 1946

candela cuba restaurant — havana nightclub famous for live music and dancing since the 1950s

the.com · every word