Over 120 years ago, sponge divers off the coast of the Greek island Antikythera unearthed one of the most enigmatic ...

Abstract: In this paper, a wide-band miniaturized Conformal conical Archimedean spiral (CCARS) antenna is proposed for Ultra wideband (UWB) communications. The CCARS antenna utilizes the vertical ...

Abstract: The radiation fields of the Archimedes spiral are derived by approximating the spiral with a series of semicircles. The calculated patterns are shown to have excellent correlation with ...

Was the cosmic whirlpool a spiral galaxy, a UFO, or something much more down to Earth? Is it a plane? Is it a satellite? Is it a galaxy? Is it aliens? A strange blue spiral lit up the skies over ...

Not quite, says the Met Office. This large glowing spiral was spotted in the night sky across the UK and Ireland on Monday evening. Image: Ivinghoe Beacon in Buckinghamshire. Pic: Keeley Williams ...

A blue spiral seen in the night sky across Europe on March 24 was likely caused by a SpaceX Falcon 9 rocket, the UK’s Met Office said. Photos taken by Joanne Werrell show the spiral over Lincoln. The ...

A large, bright blue spiral spotted over Europe on Monday night sparked chatter on social media about what might have caused the mysterious vortex. Videos posted on X showed a blue orb in the ...