Abstract: The reliability of propulsion drives is a critical aspect of any electrified marine propulsion system. Utilizing a multilevel inverter in these applications improves both power quality and ...

A strange metal rich asteroid called Psyche may be the exposed core of an ancient failed planet, and NASA’s mission could finally reveal what lies beneath its battered surface.

Japanese researchers say they are closing in on the mystery of Earth’s “missing” geomagnetic polarity reversals, identifying where they believe scientists should look for evidence of their unusual ...

A cluster of recent theoretical papers has laid out mathematical frameworks for propelling spacecraft at speeds ranging from ...

In theory, water-based propulsion systems are a low-cost, safer alternative to conventional engines. Water is easier to ...

Would you dare bring extreme sports to the next level? Do a bungee jump with no strings attached? Don't worry. We won't let you hit the ground. Canada has a secessionist movement on its hands. Its ...

Abstract: A contra-rotating propeller (CRP) offers higher propulsion efficiency compared to a single propeller. This article presents a novel underwater CRP propulsion system that integrates a ...

The V-571.Z vertical translation stage features a user-adjustable magnetic counterbalance, a direct-drive motor and optional absolute-measuring linear encoder. SHREWSBURY, Mass., Jan. 14, 2026 — PI ...