How can you go eighty miles per hour on a bicycle?

URL: http://pbskids.org/dragonflytv/knowhow/knowhow_speed_bike.html
Abstract: Is it possible for a human to ride a bicycle at the speed of 80 miles per hour? This riddle asks students how such a feat could be accomplished. On a clue page, students read about and view a brief video clip of two boys experimenting to see if a certain combination of gears can help them bike faster. When students select the correct answer from the riddle's three answer choices, a video clip plays about a unique kind of aerodynamic bicycle. A cyclist talks about the special design features--the bike is covered and the rider sits in a reclining position--that reduce wind resistance and enable cyclists to reach speeds greater than 80 miles per hour. Copyright 2005 Eisenhower National Clearinghouse
Grade Level: 5 - 7
Audience:Learner
Learning Resource Type: Lesson
Subjects: 
Subjects
Science
Physical science
Forces and motion
Friction
Speed
Science and technology
Technological design
Transportation technology
Format: image/jpeg, image/gif, application/x-shockwave-flash
Contributors: Twin Cities Public Television (Author), Best Buy Childrens' Foundation (Initiator), Public Broadcasting System (U.S.). PBS Kids (Publisher)
Copyright Information: Copyright 2004 Twin Cities Public Television, Inc.
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