The rotor moves slowly most of the times but does pick up at certain intervals. This process continues for many hours. Since the rotor is quite heavy (and hence more inertia) a small geared DC motor can be connected to the rotor to generate power for cell phones, $100 laptops, and other things in Africa. People can leave this thing to charge their phones/$100 laptops overnight.
Basically we have two chambers on either end of the rotating (pivoted) rod. The arrangement of the chambers is such that on either side of the rod, one chamber sits on top of the other (this is important). At the beginning of this operation, I fill the bottom chamber on each side with a yeast sugar solution. Each bottom chamber is always locked under pressure by special valves. Due to pressure the solution starts moving from a bottom chamber into its respective top chamber. Note that by moving upwards, the fluid’s center of gravity shifts, resulting in a mass imbalance which causes the wobbling.
M. David Weisman, a magistrate judge in Illinois’s Eastern Division, denied a federal warrant application that would have allowed law enforcement officers to force suspects to unlock their mobile devices with a fingerprint, ruling that the suspects’ Fourth Amendment (undue search and seizure) and Fifth Amendment (self-incrimination) rights protected them from being forced to unlock […]
Elenco’s Night ‘n Day Mechanical Globe uses a system of translucent, exposed gears to rotate an internally illuminated globe that displays the seasonally adjusted, real-time night/day terminator as it spins.
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Although there will never be a consensus about the best way to make coffee, any coffee connoisseur will agree that controlling the grind of your beans and balancing water temperature are the keys to a tasty cup. Since your plastic coffee pot doesn’t really allow for that kind of customization, going back to the French […]
Not all hackers are malicious information thieves—white-hat ethical hackers work with technology companies to ensure the security of their computer systems and user data. With all of today’s high-profile data breaches, ethical hackers are in considerable demand. To learn these critical skills and break into the high-paying cyber security field, try taking the courses in this […]