Although this seems like an irrelevant and random picture, it exemplifies what we have learned about electromagnetic waves so far! Electromagnetic waves travel at the speed of light, which is 3 x 10^8 meters/second. So that means as I took this picture in a chocolate shop in Las Vegas, the light traveled to my eyes at the speed of 3 x 10^8 meters/second.
As you can see, there are things in this picture that allow the light waves on the ceiling to pass through and things that don't allow light waves to pass. For example, the flowers that are solid are opaque, which means they don't allow the light waves to pass though it. Something that is transparent in the picture, which means they allow the light waves to pass, is the glass like things on the ceiling. If all the lights on the ceiling were covered by an opaque object, it would prevent me from seeing anything because light waves have to travel to your eyes in order for you to see something. That's the reason why it's easier to see things in lit areas! Its interesting how you can take any picture and connect it to waves!
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