<P> The fabric that users bounce on ( commonly known as the `` bounce mat '' or `` trampoline bed '' ) is not elastic itself ; the elasticity is provided by the springs that connect it to the frame , which store potential energy . </P>
<P> The fabric that users bounce on ( commonly known as the `` bounce mat '' or `` trampoline bed '' ) is not elastic itself ; the elasticity is provided by the springs that connect it to the frame , which store potential energy . </P>
what is the center of a trampoline called
what is the center of a trampoline called
`` bounce mat '' `` trampoline bed ''
`` bounce mat '' `` trampoline bed ''