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| is a device that creates, manipulates, or measures electromagnetic radiation. |
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| a device that allows you to see closer to a substance/living thing than normal. |
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| an optical instrument designed to make distant objects appear nearer. |
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| a telescope that uses a converging lens to collect light. |
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| uses a single or combination of curved mirrors that reflect light and form an image. |
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| two telescopes mounted side-by-side and aligned to point in the same direction, allowing the viewer to use both eyes when viewing distant objects. |
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| a diagram that traces the path that light takes in order for a person to view a point on the image of an object. |
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| the measurable amount of a property, such as force, brightness, or a magnetic field. |
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allowing light to pass through so that objects behind can be distinctly seen.
"transparent blue water" |
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| allowing light, but not detailed images, to pass through; semitransparent. |
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not able to be seen through; not transparent.
"the windows were opaque with steam" |
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| Not capable of producing light, but can be capable of reflecting light from another source. |
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| full of or shedding light; bright or shining, especially in the dark. "the luminous dial on his watch" |
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| When a beam pass of parallel light rays is incident on a smooth and plane surface, the reflected rays will also be parallel. |
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| the reflection of light from a surface |
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| a ray of light that strikes a surface. |
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| a mirror with a flat reflective surface. |
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| The Structure of Scientific Revolutions, |
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| the angle that an incident line or ray makes with a perpendicular to the surface at the point of incidence. |
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| the angle made by a reflected ray with a perpendicular to the reflecting surface. |
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| the incident ray, the reflected ray, and the normal to the surface of the mirror all lie in the same plane. |
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| mirror with a curved reflecting surface. |
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| the point at which rays or waves meet after reflection or refraction, or the point from which diverging rays or waves appear to proceed. |
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| a spherical reflecting surface (or any reflecting surface fashioned into a portion of a sphere) in which its bulging side faces the source of light. |
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(of water, air, or glass) make (a ray of light) change direction when it enters at an angle.
"the rays of light are refracted by the material of the lens" |
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| focuses or disperses a light beam by means of refraction. |
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| thinner at the middle than normal lenses |
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| When parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus. |
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| a reproduction of an object via light that can be formed on a surface |
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| it undergoes reflection, refraction, and diffraction just like any wave would. |
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| the portion of the electromagnetic spectrum that is visible to the human eye. |
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| an electromagnetic wave of a frequency |
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| a form of electromagnetic radiation |
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| a type of electromagnetic radiation |
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| An example of something ultraviolet is "ultraviolet light" an electromagnetic radiation with a wavelength of up to 400 nanometers. |
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| an electromagnetic wave of high energy and very short wavelength, which is able to pass through many materials opaque to light. |
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| the smallest wavelengths and the most energy of any wave in the electromagnetic spectrum. |
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| A method of finding the position and velocity of an object by bouncing a radio wave off it |
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emitting light as a result of being heated.
"plumes of incandescent liquid rock" |
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| Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation. It is a form of luminescence. |
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| The emission of light by a substance as a result of having absorbed energy from a form of electromagnetic radiation |
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| The emission of light by living organisms, such as fireflies, glowworms, and certain fish, jellyfish, plankton, fungi, and bacteria. |
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| A nerve ending, cell, or group of cells specialized to sense or receive light. |
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| the dark circular opening in the center of the iris of the eye, varying in size to regulate the amount of light reaching the retina. |
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| a flat, colored, ring-shaped membrane behind the cornea of the eye |
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| a layer at the back of the eyeball containing cells that are sensitive to light and that trigger nerve impulses that pass via the optic nerve to the brain, where a visual image is formed. |
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| a light-producing organ in certain fishes and other animals. |
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| A type of specialized light-sensitive cell in the retina of the eye that provides side vision and the ability to see objects in dim light (night vision). |
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| a solid whose surface is generated by a line passing through a fixed point and a fixed plane curve not containing the point |
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| one of the second pair of cranial nerves, consisting of sensory fibers that conduct impulses from the retina to the brain |
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| possess sensory organs specialized for use in aquatic conditions. They have a camera-type eye which consists of an iris, a circular lens, |
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| If something is nocturnal, it belongs to or is active at night. |
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Compound eyes are types of eyes made up of many repeating units called ommatidia. These types of eyes are mainly present in insects
A single compound eye can have as many as 30,000 ommatidia. |
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| each of the optical units that make up a compound eye, as of an insect. |
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| electromagnetic radiation |
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| a kind of radiation including visible light, radio waves, gamma rays, and X-rays, in which electric and magnetic fields vary simultaneously. |
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| the range of wavelengths or frequencies over which electromagnetic radiation extends. |
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