1 Ewa7 1999 - Rotation-the Rails To Furth-from Lever To Wheel: Revolution, Translation, Cylinders The
2 Ewa7 1999 - Puncher-the Product Of Force And Motion Pipes: Transmission Of A Yellow Pipe, Mechanical
3 Ewa7 1999 - Impulse Turbine: Inlet, Exhaust-combustion Chamber
4 Flying Sparks And Heavy Machinery
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