Portal 2 ’s very best gag comes at the start of the game, in its tutorial stages, and spins Portal ’s game-design satire into ...

Solar eclipses thrill skywatchers every year. You just have to be in the right place at the right time. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

A knob can make a surprisingly versatile interface, particularly if it’s the SmartKnob, which builds a knob around a BLDC ...

Abstract: This paper presents a tutorial on the Tracking, Telemetry, and Command (TT&C) for spacecraft and satellite missions. In particular, it provides a thorough summary of the design of the TT&C, ...