Each tutorial automatically preserve work done within them, so if you work on a few exercises or questions and then return to the tutorial later, you can pick up right where you have left off.

Step by step tutorial showing how to make a tiny LEGO vending machine using standard LEGO bricks. This video explains the full build process, including the compact internal layout, simple dispenser ...

Abstract: The flexible robot has more advantages over the traditional machine tools in machining complex workpieces like the 3D-printed part which has less residual material for removal. In robot ...

Abstract: Advanced manufacturing technologies have made great progress in the fields of aerospace, resources, and power, and the complex curved surface parts with local rapidly varied geometric ...

Reverse engineering VisiCorp's pioneering GUI for commodity PCs shows how little modern GUIs get from Xerox – and how much we all owe Apple. Another year, another magisterial chunk of software history ...