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)
“It’s like driving a car at night. You never see further than your headlights, but you can make the whole trip that way.”
—E.L. (Edgar Lawrence)
“It is not only prayer that gives God glory but work. Smiting on an anvil, sawing a beam, whitewashing a wall, driving horses, sweeping, scouring, everything gives God some glory if being in his grace you do it as your duty.”
—Gerard Manley Hopkins (1844–1889)