Abstract: Motivated by recent developments in acoustic surface waves, a new approach is presented for the systematic analysis and description of acoustic wave phenomena in isotropic solids. This ...

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VATICAN CITY — (AP) — Pope Leo XIV vowed Sunday to work for unity in a polarized Catholic Church and world, as history's first American pope offered a message of healing during an inaugural Mass in St ...

VATICAN CITY — Pope Leo XIV, history's first American pope, vowed Sunday to work for unity so that the Catholic Church becomes a sign of peace in the world, offering a message of communion ...

It works a lot like an echo, but rather than sound waves, pulses of radio waves are emitted that ... called the Radiation Lab to develop microwave radar systems for use during the war.

Katy is Managing Editor at IFLScience where she oversees editorial content from News articles to Features, and even occasionally writes some.

The facility operates in a "radio quiet zone" where radio waves, cell phone signals and wireless connections are strictly controlled to prevent interference with the telescope's tracking.

Unlike conventional radars, JORN transmits high frequency radio waves 110 kilometres up into the ionosphere, where they bounce back to the Earth's surface from above. Objects underneath — like ...

Thanks to the physics of the interaction between radio waves and the charged particles ... they use high-power UHF and microwave transmitters to scatter signals off the troposphere.

An astrophysicist is trying a new search for these gravitational waves. University of Colorado Boulder astrophysicist Jeremy Darling is pursuing a new way of measuring the universe's gravitational ...