Scientists at the X-ray free-electron laser SwissFEL have realized a long-pursued experimental goal in physics: to show how ...

An unexpected discovery in a Harvard lab has led to a breakthrough insight into choosing an unconventional material, silica, ...

The NEET UG 2026 (National Eligibility cum Entrance Test – Undergraduate) exam is expected to be held on Sunday, 3 May 2026 ...

BRYAN, Texas (KBTX) - In the midst of a foggy Thursday morning, an arc of white stretched above the horizon, catching the eye of many across the Brazos Valley. While similar to a rainbow, this ...

The formation of a rainbow requires the observer to be between the sun and falling rain, with the rain in front and the sun behind. Sunlight passes from behind the observer, refracts as it enters each ...

Abstract: In this paper, we present a new beam-shaping technique based on the use of a flat lens comprised of phase shift structures (PSSs), designed to reshape the primary beam into a desired one.

The phenomena of reflection and refraction of plane waves incident obliquely at a plane interface between uniform elastic solid half-space and porous solid containing liquid filled bound pores and two ...

Scientists have demonstrated that negative refraction can be achieved using atomic arrays -- without the need for artificially manufactured metamaterials. Scientists have long sought to control light ...