Driving
Molecular propellers can be rotated by molecular motors that can be driven by chemical, biological, optical and electrical means, or various ratchet-like mechanisms. Nature realizes most biological activities with a large number of highly sophisticated molecular motors, such as myosin, kinesin, and ATP synthase. For example, rotary molecular motors attached to protein-based tails called flagella can propel bacteria.
Read more about this topic: Molecular Propeller
Famous quotes containing the word driving:
“The beast exists because it is stronger than the thing that you call evolution. In it is some force of life, a demon, driving it through millions of centuries. It does not surrender so easily to weaklings like you and me.”
—Martin Berkeley, and Jack Arnold. Lucas (Nestor Paiva)
“There is a blessed necessity by which the interest of men is always driving them to the right; and, again, making all crime mean and ugly.”
—Ralph Waldo Emerson (1803–1882)
“Most of the rules and precepts of the world take this course of pushing us out of ourselves and driving us into the market place, for the benefit of public society.”
—Michel de Montaigne (1533–1592)