Jim Fletcher, a mechanical engineering doctoral student in fuel cell technology, said the bus is 10 percent more efficient than comparable diesel buses -- a first step in what researchers expect will one day be a far more efficient form of transportation.
These traits could be edited into a new form of the same species in a far more precise and accurate way than with the existing tricks in genetics' kit bag.
In the end, tapping putts for hours may be the most boring form of practice in golf and might seem far more tedious and ineffectual than a new love match or a seemingly sweet new swing that helps keep a balky knee healthy.
Absent a common currency in the form of the dollar, the U.S. would still be a rich country, but far less vibrant for all the wasted effort necessary to facilitate interstate trade given 50 different floating money concepts.