the.com/chemiluminescence
Light born from a chemical reaction, not heat — cold fire with a receipt.
means The production of light as the direct result of a chemical reaction, with little or no heat given off — think glow sticks and firefly tails.
from Built from Greek khēmeia (chemistry, itself tracing back to alchemy) and Latin lumen (light), with the connecting '-escence' marking a process coming into being — the same suffix that gives us 'luminescence' and 'effervescence.' The word was assembled in the 1800s by chemists who needed a precise label once they realized some reactions throw off light without the heat that usually comes with it — overturning the old assumption that light always meant fire.
- glow sticks
- bend to mix peroxide and dye, light follows
- fireflies
- use luciferin, same cold-light trick biologically
- efficiency
- almost no energy wasted as heat
- forensics use
- luminol glows blue reacting with trace blood