500 + 602 + 790 = 1892. :)
Explanation:
When Larry Rosen, PhD, talks to people who want to improve their productivity, he zeroes in on the importance of minimizing interruptions. Rosen, professor emeritus of psychology at California State University, Dominguez Hills, goes as far as to suggest that people put up a "do not disturb" sign when they need to focus on a task.
While this may not be plausible for everyone, Rosen's studies have shown how being distracted can become a bad habit that ultimately decreases our effectiveness at work or in school.
Fortunately, he and other psychology researchers have identified new ways to help people overcome the hurdles that stand in the way of their productivity, whether they are personal habits or environmental challenges. Here are some of those findings.
The fuel which may be an option that fuel cells can run on would be ETHANOL. It is so because of the formula ethanol has (C2H5OH). Hydrogen is used in this chemical reaction (catalyst) so it couldn´t be an option. Uranium is a heavy metal, difficult to be split in smaller pieces and not appropriate in this type of reaction. Crude oil does not serve for this kind of electrolitic reaction, which happens in water.