HOW & WHY?

The Boston Globe;  July 30, 1990 ;     277 words ......type of halo you see depends on how the light enters the crystals. The most common halo is...ground. This type of halo appears when light enters and exits through the sides of the hexagonal...when the crystals are oriented so that light enters through one the hexagonal sides and...

What is SAD?(News)

Evening Chronicle (Newcastle, England);  October 31, 2005 ;     110 words ......deprivation during winter months is thought to play a part. When light enters the eye, it stimulates nerve impulses to travel to the hypothalamus...mood, appetite, sleep, temperature and sex drive. If less light enters the eye or there is a fault in the nerve pathway, hypothalamus...

Light Enters a Blue Vase.(THE HOME FORUM)

The Christian Science Monitor;  April 13, 2006 ;     94 words ......the eyes of people you don't know. Try to see any star, the way light enters a blue vase. Look in the eyes of people you don't know. There is always a spark somewhere. Light enters a blue vase and the glow fills something inside you. There is...

My Eyes

Al Bawaba;  June 5, 2005 ;     55 words ...My eyelid covers my eye when I blink and when I sleep. My eyelashes, they help to keep dust out of eyes. Light enters my eye through my pupil, which gets wider in dim light and smaller in bright light. My eye works like a camera. The lens in it...

aperture

The Oxford American College Dictionary;      62 words ......x220E;  a space through which light passes in an optical or photographic instrument, esp. the variable opening by which light enters a camera. ORIGIN: late Middle English : from Latin apertura , from apert- ‘opened,’ from aperire ‘to...

Crossword.(the Back Page)

SuperScience;  September 1, 2006 ;     96 words ......on's dirt. 4. A(n)--is a sphere that circles around a planet. DOWN 5. Ancient dentists may have drilled teeth to remove--. 6. Light enters your eye through an opening called a --. 7. A(n)--is an animal that hunts and eats other animals for food. 8. Most insects...

The Pupil

Al Bawaba;  March 22, 2005 ;     50 words ...The pupil is the round black hole in the center of the iris of your eye. Light enters eyes through the pupil, which gets smaller in bright light and wider in dim light. This is possible because of the muscles in the...

A sunny delight.(Pleasures)(Brief Article)

Cosmopolitan;  August 1, 2004 ;     63 words ...With summer in full swing, try taking in an hour of outdoor light a day ... even if it's through a window. When light enters your eyes, it boosts the feel-good chemical serotonin in your body, says Marie-Annette Brown, PhD, author of When Your...

spectroscope

A Dictionary of Chemistry;      97 words ......instrument was made by R. W. Bunsen; in its simplest form it consists of a hollow tube with a slit at one end by which the light enters and a collimating lens at the other end to produce a parallel beam, a prism to disperse the light, and a telescope for viewing...

camera

Webster's NewWorld Dictionary;      119 words ......photographs, consisting essentially of a closed box containing a sensitized plate or film on which an image is formed when light enters the box through a lens or hole 4. TV that part of the transmitter that consists of a lens and a special cathode-ray tube...

Scarlett, do snowshoe hares turn white in the winter even when there's no...

Ranger Rick;  January 1, 1995 ;     88 words ......it's snowing or not. It has to do with the days getting shorter as winter approaches. As each day gets shorter in fall, less light enters the hare's eye. This causes the hare's brain to make certain chemicals. The chemicals travel throughout the hare's body in...

ASK THE GLOBE

The Boston Globe;  October 21, 1990 ;     149 words ...Q. Why does the ocean look blue or green when the water itself is actually clear? C.S., West Roxbury A. When light enters sea water, states the Encyclopedia Americana, it is scattered by the water's molecules. If nothing interferes with this effect...

YOU ASK &WE ANSWER.(Features)

Sunday Mirror (London, England);  May 20, 2007 ;     160 words ......electricity flows through it. Why is snow white? - Jean Dudley, Exeter SNOW is zillions of ice crystals arranged together. When light enters a snow bank it goes through a cr ystal on top, this changes its direction and sends it to a new crystal, scattering it. All...

THE RAZZ: POP: SING FOR YOUR SUPPER.(Features)

Daily Record (Glasgow, Scotland);  March 25, 2005 ;     86 words ......and the tune and you could win a prize. Uh uh, uh uh, now; From the deepest of the darkest of night; On the horizon, bright light enters sight tight; Cameras zoom, on the impending doom; But then like BOOM black suits fill the room up; With the quickness talk...

iris

A Dictionary of Physics;    ALAN ISAACS;   110 words ......cornea and the lens, in the eyes of vertebrates and some cephalopod molluscs. It has a central hole (the pupil) through which light enters the eye and it contains both circular and radial muscles. Reflex contraction of the former occurs in bright light to reduce...