What causes a rainbow? A rainbow in Indiana, Oct. 2015. Source: AP Photo/Michael Conroy Although light looks colorless, it’s made up of many colors-red, orange, yellow, green, blue,…
by Borgna Brunner
1920s–1999 • 2002 • 2003 • 2004 • 2005 • 2006 • 2007• 2008• 2009
1920 Iraq comes under British mandate after the fall of the Ottoman empire in 1918. 1921…
(Encyclopedia) Westminster Abbey, originally the abbey church of a Benedictine monastery (closed in 1539) in London. One of England's most important Gothic structures, it is also a national shrine.…
Biggest
Land mammal: African elephants weigh up to 14,000 pounds and can eat as much as 600 pounds of food a day! Their trunks contain as many as 100,000 different muscles.
Marine mammal: The blue…
FERTILIZATIONWIND DISPERSALCROSS FERTILIZATIONPOLLENPOLLINATORSFIND OUT MOREThe male sex cells of seed plants (flowering plants, conifers, and cycads) are contained in tough capsules called…
INSIDE A SEEDSPREADING WITHOUT SEEDSGERMINATION OF A RUNNER BEANFRUITSFIND OUT MOREMost plants grow from seeds. These seed plants fall into two groups, angiosperms and gymnosperms. Angiosperms…
What to expect at the 2006 Winter Olympic Games by Gerry Brown Related Links 2006 Winter OlympicsMemorable Olympic MomentsBirth of the Modern OlympicsEncyclopedia: Ancient OlympicsAlso…
Attack on Iraq Operation Desert Fox and Operation Northern Watch by Borgna Brunner December 16, 1998, marked the beginning of four days of air strikes launched against Iraq by the…
Fascinating but Deadly Sharks, snakes, sea wasps, and blue-ringed octopuses by David Johnson SharksSharks are one of nature’s most perfect hunting machines. But despite publicity, shark…
Factropica Fast Facts and quizzes
by Mark Hughes Related Links Great Wall of China Famous Buildings and Structures Seven New Wonders Try our Great Wall of…
