Why can you see the "air" rising over a barbecue?
Jan 15, 2009 by wagonwould | Posted in Physics
I hope it's clear what I mean. If you have a barbecue going, and you look at something in the distance with the angle going over the top of the bbq, you see that it's distorted.
Another example is if you have a radiator style space heater
"Refraction" is exactly right. Every transparent medium has an "index of refraction," which is a number that expresses how fast light can travel through the medium. In addition, light usually bends its path when it goes from one
RickB | Jan 15, 2009
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