Yesterday’s Wall Street Journal reports that a San Jose-based company called Thunderbolt Aerosystems hopes to popularize jetpacks. The jetpacks sell for $90,000, and the newspaper reports that the company’s founder admits that the packs - which emit a 1,300° exhaust stream - “can be dangerous for self-taught pilots.” Still, the firm says it has collected deposits from four prospective buyers.
Using sensors and a specialized test stand, engineers have discovered that the root causes of head trauma may lie in a complex pattern of forces that today’s football helmets aren’t equipped to handle.
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