If your electricity fails in a post-apocalyptic world, you
can use water pressure to generate electricity. Travis Lipstein and fellow
students in a mechatronics class at Colorado State University used a Tesla
turbine - based on the work of Nikola Tesla in the early 1900s - to turn water
into electricity. The water pressure forces a shaft in the turbine to rotate.
The rotating shaft is connected to a generator. The water flow around the turbine
is controlled by valves. The rotational speed is communicated to the user via a
LCD interface on the system's control panel, which lets the user know when
sufficient power is being generated by the turbine. Get Build Instructions | View
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MIT students modified a 3D printer to enable it to print more than one object and print on top of existing printed objects. All of this was made possible by modifying a Solidoodle with a height measuring laser.
This Gadget Freak Review looks at a keyless Bluetooth padlock that works with your smartphone, along with a system that tracks your sleep behavior and wakes you at the perfect time in your sleep cycle to avoid morning grogginess.
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.