The idea that an object denser than air can fly is so difficult to grasp that many people initially thought, the principles of lift and aerodynamic flow may not completely understood. 
Designed to understand the principles of airplane fly.
With our wind tunnel and a accurate balance, you can clearly see the effect of lift in action. 
General speaking the Lift force  because Bernouli’s Principle requires a partial vacuum to form over the wing of an airplane. 
This means greater pressure is under the wing, forcing it upwards. 
Activate the unit, and the apparent weight of the airfoil will decrease.
Requires small digital scale, low voltage power supply, and source of smoke.
Product Weight:1.5kg
Overall Size:300x145x220mm

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Principle of Fly

SKU: SL-646