Here are three words to strike fear into your heart: Human. Powered. Helicopter.
And by “powered,” I don’t mean a foot on the gas pedal. I mean if you stop pedaling, it falls. The only "power" in this helicopter is the Power Bar you eat before you climb inside. And you better eat a lot of them.
“It is extremely difficult because the faster you go, the more power it takes,” says Cameron Robertson, co-founder of AeroVelo, a company in Canada dedicated to human-powered engineering.