Abstract: Attitude states are critical parameters in the control, navigation, and guidance of aerial robotics. Various models, including Euler angles, rotation matrices, and quaternions, are used to ...

After 1:30 AM EDT today there are no restrictions to shopping or important decisions today. The Moon is in Gemini. Tim Hortons is raising its coffee prices for the first time in roughly three years, ...

Singer Kid Rock discovered the body of his assistant on the rock star's Nashville area property Monday following an apparent ATV accident, police said. UPDATE: Listen to Kid Rock's frantic 911 call ...