The exchange of water and heat between Earth and its atmosphere determines climate zones and ecosystems, which in turn influence where essential human activities take place. While land surface models ...

Designed to guide AP Physics 1 students through the tricky concepts of physics-ultimately preparing them for later, more difficult units.

Abstract: This letter presents an innovative composite Proportional-Integral-Derivative (PID) controller for quadrotor rotational dynamics, which simultaneously ensures trajectory tracking and ...

Objective: The aim of this study was to investigate the characteristics of brain activity changes in patients with post-stroke balance dysfunction and their relationship with clinical assessment, and ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. CHARDON, Ohio (WJW) — Third grade students ...

Due to the lapse in federal government funding, NASA is not updating this website. The Rotation and Orbit Dynamics experiment is based on measuring the Doppler range to Pathfinder using the radio link ...

The essence of the biological world lies in the ever-changing nature of its molecules and their interactions. Understanding the dynamics and interactions of biomolecules is crucial for deciphering the ...

Abstract: Active Debris Removal is an urgent topic in space environment maintenance. Capturing the defunct satellite with a space robot is one of the most important methods. However, targets in space ...

The UK’s first “teacherless” GCSE class, using artificial intelligence instead of human teachers, is about to start lessons. David Game College, a private school in London, opens its new teacherless ...