I was not here for a lot of the important things that we learned about light this week. From reading Geoffrey's blog I know now that we learned about the electromagnetic spectrum (I actually do remember being taught this). We also learned that humans can see only three colors which are red, green and blue. We also learned about how light refracts and reflects through and off of surfaces.
The electromagnetic spectrum consists of the longest waves to the smallest waves. It goes radio, microwaves, infrared, visible, ultraviolet, x rays and finally gamma rays. We only see a tiny fraction of the entire electromagnetic spectrum.
According to Geoffrey's blog, we can only see blue, red and green. But when you combine the colors, that's when you start to get the different hues and colors. I also know that if something is in front of a light source, it will create a shadow because it is blocking the light waves from shining there.
Also from Geoffrey's blog light can refract and reflect. When light refracts, it bends. When light reflects, it bounces off of a surface. Refraction mostly happens in water.
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