12 décembre 2004
The retired mechanic and self-taught physicist fell for perpetual motion 50 years ago while fixing a wrecked car. During a test-drive, he noticed the car kept pulling to the right. The alignment was off. "If I hadn't pulled the wheel back, it would go forever and ever in a circle," Costa says. "I thought that if I could make this motion vertical, it would be like a motor." Voilą. Costa drew up plans for a giant unbalanced wheel. Working mainly by himself, he gradually hauled in more than 9.5 tons of steel parts to construct his model. Given an initial push, it can revolve for three hours - aided by the wind. He envisions full-scale versions transforming deserts into oases and breaking Big Oil's grip on the world. If only he had a perpetual money machine.
- David Goldenberg