Abstract: Vacuum retention is critical for the long-term performance of hemispherical resonator gyroscopes (HRGs), though the optimal operational pressure had not been systematically determined. This ...

A spinning disc, a coil of fiber optic cable, and the Earth's own rotation are all you need to find true north at sea. Here's how gyrocompasses actually work, and why getting them right is trickier ...

Cladosporium sphaerospermum, cultured at the Coimbra University Hospital Centre in Portugal. (Rui Tomé/Atlas of Mycology, ...

Abstract: In the scenario of sensor performance degradation, the predictive management of the inertial navigation system needs to maintain reliable accuracy. However, traditional methods are difficult ...

Add Yahoo as a preferred source to see more of our stories on Google. It wasn’t until I moved to Astoria that I first had French fries in the mix—and I loved it. I’m not opposed to switching things up ...