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— Good Thinking

Greaseless ball bearings: A revolutionary spin on a design that's been around for ages

The humble ball bearing is a key component of nearly every device with moving parts, taking advantage of the vastly reduced friction you can achieve when rolling a ball between two surfaces as opposed to sliding them across one another. Now, a Japanese company has come up with a simple design that removes a key component from a typical bearing – the cage that keeps the balls separated as they roll around. Coo Space's Autonomous Decentralised Bearings don't need to be greased, and according to their inventor, this fact alone can reduce their friction by up to 90 percent compared with standard bearings.

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— Automotive

Porsche working on variable-compression engine

While the fashion in high-tech automotive developments might lean towards hybrids and electric vehicles at the moment, there’s still plenty of scope to improve the good old internal combustion engine and one of the holy grails of such development is the creation of a viable variable-compression-ratio system. Now Porsche is working on just such an engine, revealed in the form of a newly-published patent, which will be able to alter its compression ratio. Read More
— 3D Printing

Uberblox: The Lego of the 3D printer age?

As cool and wonderful as Lego is, those plastic bricks can be tricky to handle if you want to step up from mere constructive play into serious custom-built prototyping. UberBlox hopes to fill that gap. It's a metal construction set and prototyping system with a single-connector locking mechanism and a variety of control boxes for accommodating whatever computer connection or automation needs a project might have. Read More
— Aircraft

GE mixes lasers and water to keep turbine blades cool during drilling

Turbine blades for use in jet engines need to be made of a hard, unyielding exotic material made to exact specifications, which means the drilling of tiny cooling holes in the blades runs the risk of ruining them. To prevent this from happening, GE is combining the heat of the laser beam with the cooling of the water jet to drill holes without weakening the blades. Read More
— Space

Portland State University creates zero-g espresso cups for space

Space travel is a bit more civilized now that there's a bespoke Italian espresso machine aboard the International Space Station (ISS). Unfortunately, solving one problem just raises another and the astronauts are still having to drink their cappuccinos out of placcy bags. To help the zero-g coffee aficionado, Portland State University's (PSU) Maseeh College of Engineering and Computer Science has developed a microgravity espresso cup that drinks like its earthbound counterparts. Read More