That depends on the specific toys.
the physics behind paper airplane is of aerodynamics
The math behind aircrafts is very complex gemoetry and physics.
Maths and physics.
Nuclear Physics
he got tired.
the physics behind the diagnostic and therapeutic uses of heat and colds is that it brings real images and is more cost effective for the patient
Right page there is a green tank at the top. he is behind the red wooden toy that is sitting on the front of the tank
Physics is simply the study of the properties of matter and energy. The physics behind a toaster is that the toaster conducts electricity to produce heat, toasting bread or whatever other food.
T. A. Brody has written: 'The philosophy behind physics' -- subject(s): Quantum theory, Philosophy, Physics
The reasons behind uncertainty when it comes to quantum physics can be summed in one word - fragmentation
you get the from the shop behind the old village in level 3.
A ballista is a giant bow. Bows are a form of spring.