Upon reading my feature package on repowering the Welland Canal, one reader asked me if the 24 million gallons of water flowing through a lock is captured to generate power each time a ship passes. It was a good question given that not to put it toward that use seems like a terrible waste of massive water movement.
I asked my hosts about this when I visisted the Welland Canal on Nov. 9 at lock 3, standing next to older weir along side the lock. At the time, water spilled over that weir, but no power was generated. It was drainage only. The Taintor valves that control the in- and outflow of that 24 millions gallons run free of power generation, probably because the 24 million gallons has to enter and exit in 7-10 minutes to quickly dispatch the vessels. Adding generators would presumably slow down the flow.
However, the canal’s U.S. and Canadian overseers signed an agreement last year to build three hydro plants that uses existing weirs to capture "run-of-the-river" water that spills over them. The weirs handle the overflow water that does not pass through the locks. Why didn’t I think of that — after 75 years of operation!? Each power station will produce 2 megawatts and in together promises to power 5,000 homes, so sayeth the canal’s overseers.
Advertised as the "Most Powerful Tablet Under $100," the Kindle Fire HD 6 was too tempting for the team at iFixit to pass up. Join us to find out if inexpensive means cheap, irreparable, or just down right economical. It's teardown time!
The increased adoption of wireless technology for mission-critical applications has revved up the global market for dynamic electronic general purpose (GP) test equipment. As the link between cloud networks and devices -- smartphones, tablets, and notebooks -- results in more complex devices under test, the demand for radio frequency test equipment is starting to intensify.
Much of the research on lithium-ion batteries is focused on how to make the batteries charge more quickly and last longer than they currently do, work that would significantly improve the experience of mobile device users, as well EV and hybrid car drivers. Researchers in Singapore have come up with what seems like the best solution so far -- a battery that can recharge itself in mere minutes and has a potential lifespan of 20 years.
Some humanoid walking robots are also good at running, balancing, and coordinated movements in group settings. Several of our sports robots have won regional or worldwide acclaim in the RoboCup soccer World Cup, or FIRST Robotics competitions. Others include the world's first hockey-playing robot and a trash-talking Scrabble player.
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.