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:
“When you take a light perspective, it’s easier to step back and relax when your child doesn’t walk until fifteen months, . . . is not interested in playing ball, wants to be a cheerleader, doesn’t want to be a cheerleader, has clothes strewn in the bedroom, has difficulty making friends, hates piano lessons, is awkward and shy, reads books while you are driving through the Grand Canyon, gets caught shoplifting, flunks Spanish, has orange and purple hair, or is lesbian or gay.”
—Charlotte Davis Kasl (20th century)
“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)
“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)