Those whiz kids at Darpa are at it again. This time they want to use technology to let soldiers carry up to 220 lb in backpacks over all types of terrain,terrain vehicles can't get through, and for extended lengths of time.
David Hackl has been involved with the somewhat gory, somewhat scary Saw movies II through V. He gave us some insights into the mechanics of scaring moviegoers out of their wits.
German engineers have a reputation for having more practical backgrounds than their American counterparts, but does that translate into more-fulfilling careers?
It might not be NASCAR or the NHRA, and definitely not Formula 1, but lawn-mower racing is the most affordable motorsport out there. Check out the videos.
Direct-drive technology seems to be an ideal way to increase productivity, accuracy, and dynamic performance. It can also lower costs, simplify designs, and reduce wear.
Instead of the complicated mechanical and electronic systems now found in the nacelles of typical utility-scale wind turbines, why not instead use a hydraulic drive?