A bicycle headlight mostly allows others to see you. However, some of the brighter lights do aid nighttime vision. Most lights range in wattage from 2.4 to 20. Police-department bikes in the United States use a minimum of 15 watts.
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A man-made fountain opposite the Gateway Arch in St. Louis is the world's highest geyser, at 600 feet. The geyser's is powered by three 800 hp pumps and discharges water at up to 200 feet per second. The geyser can keep 1,...Read More
Jupiter is the largest planet, and it has the shortest day. Although Jupiter has a circumference of 280,000 miles, compared with Earth's 25,000, Jupiter manages to make one turn in 9 hours and 55 minutes.
A rainbow is an optical and meteorological phenomenon that causes a nearly continuous spectrum of light to appear in the sky when the Sun shines onto droplets of moisture in the Earth's atmosphere. It takes the form of a ...Read More
A grasshopper can leap over obstacles 500 times its own height. In relation to its size, it has the greatest jumping ability of all animals.
Shampoo was first marketed in the U.S. in 1930 by John Breck, who was the captain of a volunteer fire department.
The Aggie Bonfire was a long-standing tradition at Texas A&M University as part of the college rivalry with the University of Texas at Austin. For 90 years, Texas A&M students -- known as Aggies --built and burned a ...Read More