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E28 - What is it like to 'sit' on a photon and be fired into the skin?
Let’s take a ride on a photon.
Imagine we can sit on a photon. What would a trip into the skin be like? Well, it might be something like this....
As we leave the laser we will be travelling at nearly the speed of light – that is 30 million kilometres per second! However, as we enter the skin, we will slow down. This is entirely due to the change of local medium we are passing through.
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