Wednesday, June 24, 2009
As a blazing sun bore down this week, Southwest Florida got a sweltering reminder of true solar power.
With the intensity and frequency of its sunshine, Florida should be a world leader in harnessing this potent form of renewable energy.
Yet, the state has only a handful of commercial solar arrays, offers a paltry $5 million rebate program and serves merely as a conduit for federal stimulus funds targeted to renewable energy projects.
Despite good goals set by Gov. Charlie Crist, Florida has done too little to increase the use and generation of solar power or to encourage businesses or jobs in developing, supplying or installing the equipment.
Tuesday, June 23, 2009
This is a pretty interesting explanation of how RC, Radio Control, gear works. We take a lot of this for granted but when you see what goes on behind the scenes you understand just how remarkable the technology is today. Wait for the end. Pretty funny.
Wednesday, June 17, 2009
During a decade spanning the 1970s and 1980s, Dryden researchers conducted tests to determine the extent to which adjustments in the shape of trucks reduced aerodynamic drag and improved efficiency. During the tests, the vehicle's sides were fitted with tufts, or strings, that showed air flow. The investigators concluded that rounding the vertical corners front and rear reduced drag by 40 percent, yet decreased the vehicle's internal volume by only 1.3 percent. Rounding both the vertical and horizontal corners cut drag by 54 percent, resulting in a three percent loss of internal volume. A second group of tests added a faired underbody and a boat tail, the latter feature resulting in drag reduction of about 15 percent.