Abstract: Efficiency maps (EffMs) illustrate the maximum efficiencies of electric machines over a range of torque-speed operating points. This article reviews the available techniques for efficiency ...

Abstract: Radars are expected to become the main sensors in various civilian applications, ranging from health-care monitoring to autonomous driving. Their success is mainly due to the availability of ...

I built a working gumball vending machine entirely out of LEGO bricks. It takes real coins and gives out real candy. No motors, no tricks — just LEGO and clever design. Watch to see how it works!

Discover how to build a working Lego vending machine with just a few bricks! In this fun and easy tutorial, you’ll see how this simple Lego mechanism dispenses candy using real coins. Great for Lego ...