Abstract: Costas arrays have ideal autocorrelation and are widely used in radar, sonar and other fields. Two main methods to obtain Costas arrays are algebraic construction and exhaustive search, the ...

When you have a JSON file or an array of objects and need to filter, search, or query them with MongoDB-style syntax - without setting up a database.

Summary: Scientists discovered how the brain uses objects to anchor our sense of direction, solving part of the mystery of spatial navigation. Experiments in mice showed that cells in the ...

“Punctum” may sound like type of punctuation, but to some scientists, it constitutes what may be a brand new type of cosmic object. In a new interview with Gizmodo, Elena Shablovinskaya, a radio ...

Comet 3I/ATLAS is the third confirmed interstellar visitor to our solar system. But with the Rubin Observatory now scanning the sky, many more may soon be found. When you purchase through links on our ...

WASHINGTON — The defense secretary’s decision to review military standards on combat and physical fitness and appearance opens a Pandora’s box of widely differing rules among the services. And it will ...

Female Marines go through one of the obstacles in the so-called confidence course at Parris Island Recruit Depot, S.,C., on May 27, 2020. The defense secretary’s decision to review military standards ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. WASHINGTON (AP) — The defense secretary’s ...