It is also the training of teachers to not just convey this knowledge, but to do so in a way that promotes student enthusiasm, pride and commitment.

FORBES: Testing California's Commitment to Education

So has Karl Haro von Mogel, a 27-year-old plant sciences graduate student at the University of Wisconsin at Madison, whose blog promotes the technology.

FORBES: Green Genes

He made no mention of Mitt Romney, his all-but-certain opponent in November, but took aim at House Republicans who passed a measure last week that would pay for extending the lower student loan rate by cutting from a health care fund that promotes preventive care.

CNN: Obama urges students to pressure Congress on loan rates