Just after I blogged Aug. 2 about the huge 2.5 mile Tobin Bridge over the Mystic River/Boston Harbor and connecting the city with to communuties to the north, bits of concrete and metals shards started falling on the Chelsea Yacht Club damaging some boats. No one was hurt and Massachusetts Port Authority officials said the bridge, which carries 76,000 vehicles a day, is safe although they have stepped up inspections. The bridge turns 60 in 2010 and when traffic is bumper to bumper during rush hour, it gets a bit bouncy especially when an 18-wheeler tanker passes you by.
In May, officials announced the aging structure would be painted. In some cases that can cost more than actual bridge construction. Indeed that was the case 50 miles to the north on virtually the same highway (Route 1/95) with the Piscataqua River Bridge which opened in 1972.
The topic of highway and railroad bridges is a hot one with the Aug. 1 collapse of the I35-W Bridge connecting Minneapolis and St. Paul. Today’s quiz: how many gallons of paint will it take to paint the Tobin Bridge (no Googling allowed)?
Festo's BionicKangaroo combines pneumatic and electrical drive technology, plus very precise controls and condition monitoring. Like a real kangaroo, the BionicKangaroo robot harvests the kinetic energy of each takeoff and immediately uses it to power the next jump.
Design News and Digi-Key presents: Creating & Testing Your First RTOS Application Using MQX, a crash course that will look at defining a project, selecting a target processor, blocking code, defining tasks, completing code, and debugging.
These are the toys that inspired budding engineers to try out sublime designs, create miniature structures, and experiment with bizarre contraptions using sets that could be torn down and reconstructed over and over.
PowerStream is deploying the microgrid at its headquarters to demonstrate how people can generate and distribute their own energy and make their homes and businesses more sustainable through renewables.
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.