light
What is light?
To turn a room completely dark you turn the light off.
Light is made up of 7 different colors, light has to hit the prism.
Light is energy
How do we see?
What can light do?
Polarized Sunglasses
Concave and Convex Lenses
Diseases that Affects Eyes
Optical Illusions
Convex and concave can be used for telescopes.
Concave makes the image upside down.
Concave is blurry while convex is clear.
Light can also reflect (bounces back)
Light can scatter on objects that are not smooth.
Light can refract faster than you can blink (bending)
Polarized sunglasses make unpolarized light to polarized light.
Polarized sunglasses darken when turned a second pair 90 degrees.
Polarized sunglasses can’t be worn by pilots.
Hand and eye illusion is when the brain wants to connect two things so it is focused.
Optical illusions are things you can see but they are not there.
illusions trick your brain because the brain wants to connect empty spots or combine images.
Farsighted is when you can’t see things close up well (you need convex lenses).
Diabetes (retinoopahty)can affect your eyes by making blood go to your eyes.
Glaucoma is when the fluid build up in your eyeballs.
Light makes things visible by reflecting and hitting our eyes.
Pupils will shrink with sunlight and grow in dark light).
Our eyes take in the image, it hits the retina, the nerves, brain to turn it right side up.