Upthrust pulls u up and gravity pulls you down
no they tell someone.
My skateboard is a majestic eagle, soaring through the air.
In the hold
not really, try Air Gear...it's similar...
If you are reffering to the 'Christ Air', that would be Christian Hosoi.
wings and speed are the main sources that keeps planes in the air! you can find out more by google it
An ollie, as referred to in skateboarding, would be a trick where the rider of the skateboard leaps into the air with the skateboard basically staying attached to the riders feet without the use of his/her hands.
Global X Games - 2013 Burnquist Shines in Skateboard Big Air 4-4 was released on: USA: June 2013
Propulsion is what keeps a jet in the air. Otherwise the plane has to fall down. Propulsion keeps the air always flowing over the wing which in turn keeps the plane afloat.
The type of air that keeps a beach ball inflated is kinetic energy.
Inertia keeps you moving forward.
If you mean a hot air balloon, it is the expansion of the air caused by the propane burner. If you mean any balloon, it is the ability of the material to hold the air or gas inside which keeps it inflated.