(Encyclopedia) snowmobile, vehicle designed to travel over snow, ice, and similar surfaces that offer limited traction and weight-supporting capability. As the performance of the vehicle depends to a…
(Encyclopedia) Ogden, city (1990 pop. 63,909), seat of Weber co., N Utah, at the confluence of the Ogden and Weber rivers; inc. 1851. Aerospace industries and Hill Air Force Base are the major…
Radar—Scanning the SkiesWeatherRadar and SatellitesRadar—Scanning the SkiesDoppler—the New GenerationSatellites—a Far-Out LookThe Modern EraPutting It All Together The first radar (radio detection…
actorBorn: 11/6/1970Birthplace: Austin, Texas Young actor best known for portraying the quintessential slacker opposite Winona Ryder in Reality Bites (1994) and the sensitive young student in Dead…
How Much Oxygen Is in the Air?Advanced-Level Science ProjectsEarth ScienceHow Much Oxygen Is in the Air?Which Is More Acidic, Snow or Rain? When you step outside and take a big breath of fresh air…
What Substance Melts Ice Fastest?Science Projects for BeginnersChemistryWhat Household Cleaners Break Down Jell-O Best?What Substance Melts Ice Fastest? Another fun chemistry project is to test a…
(Encyclopedia) dogtooth violet, originally a name for the Old World plant Erythronium denscanis, now applied also to several North American species of the same genus of the family Liliaceae (lily…
(Encyclopedia) Simenon, GeorgesSimenon, Georgeszhôrzh sēmənôNˈ [key], 1903–89, Belgian novelist. One of the most prolific of modern authors, he is best known for the more than 75 stories he wrote…
(Encyclopedia) blindness, partial or complete loss of sight. Blindness may be caused by injury, by lesions of the brain or optic nerve, by disease of the cornea or retina, by pathological changes…
