Word: bike
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Dates: during 1970-1979
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...that 50 miles of urban bicycle paths be provided for every 100,000 residents, and the Department of the Interior has plans for nearly 100,000 miles of bicycle trails and paths to be constructed in the next ten years. Already there are at least 15,000 miles of bike roads in the U.S. Longest is the 332-mile Wisconsin Bikeway, stretching from the state's eastern edge at Lake Michigan straight across to the Mississippi River. San Francisco boasts a 7½-mile bike trail in Golden Gate Park. New York's Central Park drives are closed...
Commuting by Bike. Serious cyclists, of course, do not regard the activity merely as a Sunday or vacation sport but as part of everyday existence. Harvard English Professor Joel Porte, for example, sold his car four years ago, and hasn't "even been tempted" to own one since. Instead, Porte, 36, and his wife Ilana, 31, get by on ordinary $35 three-speed English bicycles; he makes the trip from Belmont, a Boston suburb, to the Cambridge campus in 17 minutes flat. Last week, just before her first baby was due, Mrs. Porte was still running errands by bike...
Actress Doris Day regularly bikes into Beverly Hills to shop and expects to keep it up "even when I'm 80." Doctors and professors at Case Western Reserve University in Cleveland frequently commute by bike, as do some members of the Cleveland orchestra-with piccolos, flutes, violins and violas strapped to their backs...
...Evanston home to his Chicago office every day of the year except in driving rain or a blizzard. On weekends, Sloane, his wife and four kids all go bicycling for a change, often knocking off as many as 100 miles a day. On business trips, he packs his bike onto airplanes, rides it to his hotel and parks it in his room. When he isn't actually on a bike, Sloane writes about them: his 400-page Complete Book of Bicycling will be published this fall...
Next, Jones turned the front wheel 180 degrees so that its point of contact was farther behind the steering axis than it is in an ordinary bike. Instead of riding the bike himself, he simply pushed it off. "Incredibly," he reports in Physics Today, "it ran on for yards before falling over." By moving back the contact point, Jones had inadvertently increased the front wheel's torque. This twisting force normally counteracts the bike's tendency to fall over by steering it in the direction it is leaning. URB III was. in fact, even more stable than...