When I turn the light on in my room, it emits photons. Is it a continuous stream of photons travelling at the speed of light? Why can’t there be ‘too much light’?
Let’s say i imagine the lightbulb is a garden hose with water coming out (photons). Why doesn’t the lit up surface the photons reflect off of get wet (saturated)?
When I look at a wall in a lit up room, do those photons travel to my eyes?
In: 3
The lightbulb does make the room brighter over time, but because light travels so fast – 300,000km per second – that time is extremely short. As a photon bounces around the room eventually it gets absorbed into something and turns into heat.
When you turn on the light the photons build up in the room in less than a millisecond to the point where things are absorbing them at the same rate as the lightbulb is emitting them.
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