On clear nights, you can see the trail of the Milky Way's spiral arms. Earth is located in the Orion Spur.
As author Douglas Adams wisely observed, "Space is big. Really big."…
Which Is More Acidic, Snow or Rain?Advanced-Level Science ProjectsEarth ScienceHow Much Oxygen Is in the Air?Which Is More Acidic, Snow or Rain? You've heard of acid rain, but what about acid snow…
The worst natural disaster in U.S. history by Chris Frantz San Francisco, California, April 1906 Related Links Almanac: San FranciscoSan Francisco Census Facts: 1906 Versus TodayAll…
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Few things in nature stir our senses like falling water. Whether it’s a gently babbling trickle or a raging torrent tumbling down the side of a mountain, waterfalls are truly one of…
Source: The U.S. Government Printing Office After winning its independence from Great Britain in the Revolutionary War, the new country situated on the eastern seaboard of North America needed to…
Economic Indicators It is said that the only way to get a unanimous opinion from a group of economists is to limit the group to one person. Economists are notorious for being unable to…
Source: National Institute of Standards and Technology Physics Laboratory Celestial bodies—the sun, moon, planets, and stars > have provided us a reference for measuring the passage of time…
(Encyclopedia) iceboating, sport of sailing a specially prepared boat equipped with runners over ice. The first iceboats were probably sailed by the Dutch during the 18th cent., although the Finns…
(Encyclopedia) PrometheusPrometheusprōmēˈthēəs [key], in astronomy, one of the named moons, or natural satellites, of Saturn. Also known as Saturn XVI (or S16), Prometheus is an irregularly shaped (…
