COMSOL.COM 25 If you’ve ever driven a car with no power steering, you’ll recall having to pull very hard on the steering wheel to turn the tires to match your movements. Thankfully, those days are past us. Power steering systems — which make driving much more comfortable by providing assistance through steering gears — have gone through many iterations over the years and continue to evolve with improved designs. Until the 1990s, hyd

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