A man was injured during a jet pack demonstration in Denver, proving that sometimes you just can’t defy gravity.
Nick Macomber, vice president of Jet Pack International, was performing a test flight of his product when he lost control of the device and fell some 20ft.
Macomber escaped serious injury and is in stable condition following the crash, according to the Denver Post.
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“He was testing the jet pack,” CEO of the company Troy Widgery said. “He’d made some recent changes. He had some control issues.”
The jets, which are powered by hydrogen peroxide, can reach up to 150ft but can’t stay in the air for longer than 30 seconds.
Jet Pack International performs shows globally and Macomber himself recently braved the Irish winds in Dublin.