What Is Potassium? Potassium is a mineral that, among other things, helps muscles contract, helps regulate fluids and mineral balance in and out of body cells, and helps maintain normal blood pressure by blunting the effect of sodium. Potassium also may reduce the risk of recurrent kidney stones and bone loss as we age.
Racking strength, simply explained, is the ability of a square or rectangular (wall) area to maintain its shape under duress. The picture below (from an old federal document testing racking strength) demonstrates what can happens with stress exceeds a wall's racking strength.acking strength, simply explained, is the ability of a square or rectangular (wall) area to maintain its shape under duress. The picture below (from an old federal document testing racking strength) demonstrates what can happens with stress exceeds a wall's racking strength.
Rack & Pinion is just what it says, and what is currently in universal use, a flat toothed rack with a single pinion gear that moves it back and forth. -Power steering means any kind of assist for either kind of steering gear, be it hydraulic recirculating-ball or electric rack & pinion... got it. rack and pinion sounds less complicated to run. and sounds alot lighter.... rack and pinion vs power steering.