By 1934, there were several ham stations on the air using single-sideband.
Most of them were stunting, showing how long they could keep the ball in the air using only their feet and heads.
Can jump very high into the air using its powerful legs.
Sitting in the lotus position they jumped into the air using their thighs to propel them off the ground.
The display shell explodes in the air using an electronic timer.
To see if they can spot campfires from the air using infrared scopes.
For many years, the banks made money out of thin air using opaque structures and, in 2008, this bubble burst.
The juggler keeps the devil stick in the air using two control sticks.
The Spinner will be tossing the coins in the air using the kip until they win or lose.
Players are permitted to throw the ball in the air using an underarm action.