the.com/incandescence
the body's brightness when it gets hot enough to stop hiding and start glowing
heat taxBulbs waste 90% of energy as heat, not light
color clockHotter objects glow blue, cooler ones glow red
banned glowMany countries phased out incandescent bulbs entirely
star tongueStars announce their temperature through their color
red thresholdThings start visibly glowing around 525 degrees Celsius