Abstract: Ultrasound beam propulsion, a propulsion system that uses airborne ultrasound phased arrays (AUPAs) to propel a blimp in an indoor environment to propel a blimp, has advantages for ...

An illustration of a magnifying glass. An illustration of a magnifying glass.

Incredible footage from the National Oceanic and Atmospheric Administration (NOAA)'s "Hurricane Hunters" flying straight into the eye of Hurricane Melissa, with turbulence rocking the aircraft. The ...

Abstract: A new type of fixed-frequency beam-scanning leaky-wave antenna (LWA) in Ka millimeter-waveband is developed in this article, based on dual control of phase and amplitude. The antenna ...

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Wednesday's rain didn't stop crews from starting the next big step of the Amway Soccer Stadium. (Oct. 22, 2025) Going gray may have a hidden health benefit 'Charlie's Angels' star Jaclyn Smith marks ...