NGC 1786’s mixed-age stars suggest globular clusters aren’t one-generation wonders, offering fresh clues to galaxy formation far beyond the Milky Way.

In this paper, a parallel mechanism designed for the sun-tracking system was designed and presented. The system adopts the parallel mechanism, which is realized by connecting a fixed plate and a ...

This study investigates failures in solder joints of Ball Grid Array (BGA) components using destructive techniques such as cross-section, dye and pry, and chemical etching with metallographic reagents ...

Both humanoid robotics and prosthetics rely on the possibility of implementing spherical active joints to build dexterous robots and useful prostheses. There are three possible kinematic ...