IP 08 Counterweight

IP 08 TARDIS effect/Counterweight [Principle of counterweight]

Counter an undesirable force (typically gravity) by using a counter balance or buoyancy or similar.

Balance a weight using a dead weight counter balance.

Adjust or compensate for a weight or force using live counter balance or other force.

Counter balance in elevators, buoyancy or life jackets.

Gas springs for car tailgates.

Springs or weights for lifting or roller doors and shutters.

Power assisted swing doors or vehicle steering wheels.

After space and time constraints, gravity has a habit of bring everything back to earth with a bump. Counter balances have been used in many machines for years.

However gravity is not the only force we have to contend with. Centrifugal (or more correctly centripetal) forces cause problems for anything going around a curve, and accelerating or decelerating require (and therefore produce) often unwelcome forces. Inertia (both linear and rotational) as well as cultural resistance to change are both forces which often pull away from where we want to go and need to be countered. Live counter balances (where adjust in magnitude as required) are more challenging to deliver than dead forces but are naturally more useful.

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