A jetpack nears to commercial liftoff, but the man who started it fears his vision of a personal jetpack will remain grounded.
http://phys.org/news/2016-04-jetpack-nears-liftoff-creator-grounded.html#nRlv
A jetpack nears to commercial liftoff, but the man who started it fears his vision of a personal jetpack will remain grounded.
http://phys.org/news/2016-04-jetpack-nears-liftoff-creator-grounded.html#nRlv