As with hemp oil, delicate nut oils like hazelnut should be stored in the refrigerator once opened to preserve freshness. Buy only the amount youâll use within three to six months for peak flavor. Best uses: Skip the frying pan and use hazelnut oil to gussy-up cooked rice, quinoa, or oatmeal.
Hinge is a joint. It is designed to join two 'arms' together while letting them move freely. A lever is when a pivot, load, effort is present. Although hinge itself is not a lever, but taking our biceps as an example, that would be a Class 3 lever.
fulcrum. see lever lever,simple machine consisting of a bar supported at some stationary point along its length and used to overcome resistance at a second point by application of force at a third point. The stationary point of a lever is known as its fulcrum...... Click the link for more information.