home *** CD-ROM | disk | FTP | other *** search
- <text id=90TT1935>
- <title>
- July 23, 1990: Racing Along On Sunshine
- </title>
- <history>
- TIME--The Weekly Newsmagazine--1990
- July 23, 1990 The Palestinians
- </history>
- <article>
- <source>Time Magazine</source>
- <hdr>
- TECHNOLOGY, Page 67
- Racing Along on Sunshine
- </hdr>
- <body>
- <p>A solar-car contest points the way to practical electric
- vehicles
- </p>
- <p> One contestant looked like a horseshoe. Another resembled
- a giant pizza box with a bubble on the top. Others were shaped
- like teardrops, pea pods, torpedoes or pyramids. All were
- festooned with dark glassy cells that shimmered like fish
- scales in the sun as the vehicles purred, rather than roared,
- down the back roads of America. Along the way, people gawked
- and pointed, squinted and saluted, did double takes, took
- snapshots and lifted small children to give them a better look
- at what their future might hold. "Oh, here comes another one!"
- cried Susie Black, one of hundreds of people who lined the
- streets of Donalsonville, Ga., (pop. 3,500) last week to watch
- the strange procession roll along U.S. 84. "This is the most
- excitement we've had here since those murders a few years
- back."
- </p>
- <p> The weird-looking machines are the solar-powered cars
- competing in GM Sunrayce USA, the nation's largest ever race
- for vehicles propelled solely by power from the sun's rays.
- Built by science and engineering students from 32 American and
- Canadian colleges and universities, the innovative cars,
- capable of reaching speeds of up to 113 k.p.h. (70 m.p.h.), are
- following an 11-day, 2,639-km (1,640-mile) course that began
- in Lake Buena Vista, Fla., and will pass through eight states.
- The high-tech Soap Box Derby is scheduled to finish this week
- at the General Motors Technical Center in Warren, Mich., outside
- Detroit. (In case of extended rain, the race may be delayed.)
- According to the contest's sponsors--GM, the Department of
- Energy and the Society of Automotive Engineers--the race is
- more than a vivid demonstration of what today's solar
- technology can do. They hope that it will also stir the
- creative juices of a generation of science-shy students that
- seems inclined to leave the engineering challenges of tomorrow
- to the Japanese.
- </p>
- <p> There was no shortage of Yankee ingenuity among the Sunrayce
- entrants. Each team had to devise its own solution to the basic
- technological problem of converting fickle sunlight into
- sufficient electrical power to drive a vehicle across the
- country. Many came up with bizarre gimmicks that surprised even
- veteran engineers. The Florida Institute of Technology's secret
- weapon was a thin surfboard of a car with solar panels not just
- on its top, but also on its underside, to gather light
- reflected off the asphalt. Western Washington University built
- a car with two drivers seated back to back and a solar panel
- tipped rakishly, and permanently, to one side. In the morning
- students drove with the panel tilted toward the east. After
- lunch they simply turned the car around, so its panel caught
- the afternoon sun, and drove backward the rest of the day.
- </p>
- <p> The University of Michigan's chief innovation was to enlist
- students in the business school to raise funds and manage the
- team's financial affairs. Every school got $7,000 in seed money
- from the race's sponsors, and most raised many thousands more.
- But Michigan's team gathered nearly $800,000. Not only is its
- Sunrunner computer-designed and wind-tunnel-tested, but it is
- also assisted by a scout vehicle carrying weather-forecasting
- equipment and by a rolling metal shop (complete with lathes and
- drill press) to help make any needed repairs. The Michigan
- racers have a computerized map of every traffic light and speed
- zone along the course, a film crew and a public relations
- manager.
- </p>
- <p> When will all-solar cars be rolling out of local showrooms?
- Probably never, says Paul MacCready, the guru of low-powered
- transportation and one of the designers of the GM Sunraycer,
- winner of the 1987 World Solar Challenge across Australia. To
- run dependably on cloudy days, a solar car would have to carry
- sufficient power to make the trip on batteries alone. Better
- to charge the car from a wall socket and use the solar cells
- elsewhere--perhaps at power stations to ease the load of
- generators running on nuclear or nonrenewable fossil fuels. The
- real value of Sunraycer, says MacCready, was that its
- improvements in aerodynamics, lightweight materials and motor
- technology made possible GM's Impact, a non-solar electric car
- now being readied for mass production.
- </p>
- <p> The first three finishers in the current race will be sent
- to Australia in November, at GM's expense, to compete in the
- 1990 World Solar Challenge, a repeat of the 1987
- Darwin-to-Adelaide contest. But for hundreds of youthful
- participants, racing by day and swapping notes--and solar
- cells--by night, Sunrayce is one of those competitions in
- which just getting to the starting line may be as important as
- finishing first.
- </p>
- <p>By Philip Elmer-DeWitt. Reported by S.C. Gwynne/Detroit and Don
- Winbush/Donalsonville.
- </p>
-
- </body>
- </article>
- </text>
-
-