Abstract: Wireless power transfer (WPT) technology facilitates convenient and flexible power replenishment for autonomous underwater vehicles (AUVs). However, the rotation misalignments often happen ...

Researchers at OIST built a graphite disk that levitates and spins for hours in a vacuum, showing how perfect magnetic symmetry can cancel energy loss.

With a clever design, researchers have solved eddy-current damping in macroscopic levitating systems, paving the way for a ...

By combining Gaia’s massive asteroid dataset with AI modeling, scientists discovered that asteroid rotation depends on how ...

Abstract: Cam-lobe radical-piston hydraulic motors can achieve ultrahigh power rotary output (up to megawatts), which are widely used in tunnel boring machines, dredgers, and other high-end equipment.