Abstract: This communication proposes a radiation pattern reconfigurable circularly polarized antenna based on liquid dielectric. The antenna consists of a circularly polarized feeding antenna and a 3 ...

Delta Air Lines has spent about two years trying to bring a major upgrade to its first-class seats on coast-to-coast flights, but the airline is now quietly abandoning those plans after years of ...

McGill University researchers have discovered a new way to fold flat sheets into smooth, curved shells that can switch from floppy and flexible to stiff and load-bearing on demand. By designing a ...

A big backyard griddle can change a summer. I made dozens of tacos, burgers, and pancakes to find the best setup. A big outdoor griddle can change what summer feels like. And the best flat-top grills ...

The Powerball numbers drawn Wednesday, April 29 aligned with common player patterns on playslips and led to dozens of tickets winning at least $1 million, according to a Powerball news release.

There's odd math surrounding the white balls from the Powerball drawing Wednesday, April 29 where 91 tickets won at least $1 million, including two that won the jackpot. The winning numbers were 3, 19 ...

The hammer has come down on a group of Finnish Air Force trainee pilots who deviated from their flight patterns to draw two giant penises in the sky. Air Force Reserve Officer Training Corps cadets ...

The previous episode presented a CAD technique that allows coined sheet metal corners to seem to be unfolded. For demonstration, leather was the target material instead of sheet metal. Although ...

Why Does Your Drawing Look Flat? Posted: November 13, 2025 | Last updated: November 13, 2025 Wondering why your drawing doesn't look quite right? This short tutorial breaks down three simple color ...