Light Refraction

Moving from reflection to refraction today, we learned about the bending of light instead of the bouncing of light. Light refraction happens in lenses, or even in raindrops. It's how we can see rainbows, and how we can set physics notes on fire in the quad with magnifying glasses. Another application of refracting light happens in our eyes. As someone who's worn glasses or contacts since the 2nd grade, I actually found this pretty interesting. When light hits someones eye, the light bends at the lens of our eye, refracting it so that it hits the retina, so that we can see the light. For me, because I'm nearsighted, the lens of my eye doesn't quite bend the light the right way, so the light actually hits just before my retina, making everything blurry. My glasses bend the light in such a way that it hits exactly my retina, letting me see clearly.