Here's a skateboard that doesn't need a hill (or a push-off from your foot)
for propulsion. James Howland and his project buddies, Pat Rimel and Nate
Davis, created a motorized mountainboard as a project for their mechanical
engineering class at Colorado
The gadget has a handheld speed control, and the team was able to get the board
up to speed of 13 miles per hour. The speed decreases while traveling up hills
but still has enough torque to conquer hills with ease. The mountainboard also
has buzzer on the nose that acts as a horn.
The implementation of a new diesel fuel standard in the US has considerably improved the environmental performance of diesel vehicles. The Environmental Protection Agency (EPA) says that the new ultra-low sulfur diesel (ULSD) fuel has combined with other improved technologies to reduce diesel's particulate matter (PM) emissions by 99%.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.