Both pathology have been attributed to damage by free radicals, there has been a great deal of interest in antioxidants. Bilberry's flavonoids are known as potent antioxidants, scavenging free radicals and used for multiple age-related ocular disorders. Thus, bilberry may have health benefits on these conditions.
Tensioner pulleys and idler pulleys keep the belt taut and running smoothly. The accessory pulleys have to spin a certain direction to power their respective parts. This determines whether they ârideâ on the inside or outside of the belt.
You can use a pulley to make it easier to pull a rope, to change the direction of a force, or to get more mechanical advantage and lift something heavier than you can lift by yourself. With a fixed pulley, the pulley is attached to a hook or a wall and doesn't move, like the clothesline pulley in the picture here. A fixed pulley doesn't give you any mechanical advantage, but it changes the direction of the force.