Implementations of the major developments in 3D-attitude determination of spacecraft including the Triad method and various solutions to the Wahba's problem.

The best parental control apps allow you to block adult content from appearing on your child's phone, and help keep a range of internet threats at bay. We have been reviewing parental control apps ...

Time is precious. It’s the one resource we all have in equal measure, yet so many of us feel as though we never have enough of it. Despite the fact that studies like the American Time Use Survey ...

If you have a can-do attitude, you don't let anything stop you. Learn how to use this expression here. Hello. Welcome to The English We Speak, where we explain phrases used by fluent English ...

The wine was flowing. A bowl of mixed nuts was down to the crumbs. Someone knocked over a glass mid-story—a sure sign that the conversation had shifted into high gear. It started, like these ...

Remedy has released a free content update for its Control Ultimate Edition. The update - which includes access to Dr Yoshimi Tokui's Guided Imagery Experience featuring a certain Hideo Kojima - is ...

Lockheed Martin's Sikorsky demonstrates the flight capabilities of its rotor blown wing unmanned aircraft system. (Lockheed Martin) Through extensive flight tests earlier this year, Lockheed ...

Nostalgia is funny sometimes. Most wrestling fans look back on The Attitude Era fondly. It's mostly for good reason. The WWE was caught white-hot in this era. Not one, but four different guys took off ...

Abstract: This article proposes an integrated physicsdata based attitude control method to achieve stable flight of a quadrotor unmanned aerial vehicle (UAV) system. First, a quasi-linear parameter ...

A sliding-mode control based on a prescribed performance function is proposed for discrete-time single-input single-output systems. The controller design aims to ...