It proves I’m a geek to say I want one even if I’m not quite sure what I’d do with it

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Read more at: FPGAs, LEDs, tools and wearables, new products in the Maker Shed

…FPGAs are intimidating beasts to most makers, including myself. Thankfully, Justin Rajewski’s insanely popular Kickstarter project caught our eye. The entire goal of the Mojo is to make getting started with FPGA and digital design as easy as possible. An FPGA allows you to design digital circuits (basically a bunch of logic gates connected together to perform a specific task). The designs that you create can range from something as simple as a counter to blink an LED to something as complex as a multi-core processor (or an Audio Visualizer).
With a microcontroller (like an Arduino), you write software that gives you control of the the built-in peripherals but is limiting in that you can often only complete one action at a time. With FPGAs you are not creating software; you’re designing the hardware. Instead of writing code to run on a fixed processor with fixed peripherals, you get to design your own circuit.
Justin’s done a fantastic job of releasing new tutorials for getting started with Electronics, Logic and the Mojo on the Embedded Micro website. He’s also began work on an IDE specifically for the board, to make it even easier to develop for. Read more about this flexible, powerful board and pick one up from the product page. …

…and the other stuff they highlight is cool to!

Now for something somewhat different

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In a gerotor motor, the outer ring’s gear teeth remain stationary while fluid flow turns the internal rotor. This drawing is of a six-pointed gerotor assembly. To see a motor’s internal components in action, view the YouTube video, Motion Study of the Gerotor Motor at http://www.youtube.com/watch?v=iooA0mJzEIE.

Machine Design has always been one of the best engineering teaching magazines out there and this article on hydraulic motors is an example of why. Informative and elegant graphics, straight forward, intelligent and direct (without dumbing down) explanatory prose. OK it’s about hydraulic motors but it’s cool, neat, etc, especially in this age of the maker revolution.