On the other side is a liquid called aqueous humor. It circulates throughout the front part of youreyeand keeps the pressure inside constant. After the aqueous humor, light passes through the pupil. This is the central round opening in your iris, the colored part of youreye. It changes s...
From the cornea, light travels through the pupil. The pupil is the black hole in the center of the eye that expands and constricts to control how much light makes it through to the back of the eye. Next, light passes through the lens, which is located directly behind the pupil. The l...
The fact that blue light penetrates all the way to the retina (the inner lining of the back of the eye) is important, because laboratory studies have shown that too much exposure to blue light can damage light-sensitive cells in the retina. This causes changes that resemble those ofmacular ...
Light is a type of electromagnetic radiation visible to the human eye. It is made out of little packets called photons. Photons behave like particles in some ways and like waves in other ways. If you shine a beam of light at a mirror, for example, it bounces off of it just like a b...
She looks grotesque with one eye heavily swollen. Her face is eerily and intermittently illuminated by the motion- sensor light. 72 INT. MANSION - LIVING ROOM - NIGHT 72 Mun-Kwang drips water as she walks over to the kitchen. The living room is not fully visible from her vantage point...
Is the speed of light constant? The speed of light is a universal constant in a vacuum, like the vacuum of space. However, light *can* slow down slightly when it passes through an absorbing medium, like water (225,000 kilometers per second = 140,000 miles per second) or glass (200,...
An eyepiece works by taking the light that’s captured and focussed by your telescope and magnifying the image that is seen by your eye. The eyepiece needs to do this effectively if you’re to get a really good view of that celestial object. As light passes through the lenses in your ey...
The limitations of using ray models to explain light behavior are highlighted.The segment emphasizes the difference between the ray representation and the wave perspective when light passes through a lens interface. ✦The segment focuses on wave interference and intensity variations in a lens system....
Epicurus argued the opposite: Objects produce light rays, which then travel to the eye. Other Greek philosophers -- most notably Euclid and Ptolemy -- used ray diagrams quite successfully to show how light bounces off a smooth surface or bends as it passes from one transparent medium to ...
This type of parachute is square or rectangular and is made completely out of lightweight nylon. There is a top and bottom sheet of nylon, and then a set of fabric ribs between them. The ribs divide the parachute into a set of individual cells. Air enters, or rams, into the front of...