With the popularity of fuel cell technology rising, so too is the decision to use a brushless dc motor for fuel cell applications. Not only does a brushless motor remove the need for dc to ac inverters, the absence of brushes completely eliminates the risk of arcing or sparking. Compared to brush dc motors, these have a longer lifespan, and some would even consider them to be nearly maintenance-free. The motors also feature integrated electronic capability, wide dynamic speed range that reduces power consumption, and high efficiency.
Some of our culture's most enduring robots appeared in the 80s. The Aliens series produced another evil android, and we saw light robot fare in the form of Short Circuit. Two of the great robots of all time also showed up: The Terminator and RoboCop.
Optomec's third America Makes project for metal 3D printing teams the LENS process company with GE Aviation, Lockheed, and other big aerospace names to develop guidelines for repairing high-value flight-critical Air Force components.
This Gadget Freak review looks at a cooler that is essentially a party on wheels with a built-in blender, Bluetooth speaker, and USB charger. We also look at a sustainable, rotating wireless smartphone charger.
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.