Abstract: Millimeter-wave wireless communications concepts have been considered as a key technology for future 5G communication systems. Analog or digital hybrid precoders and combiners architectures ...

"Dark photon" theory says light's interference patterns may emerge from quantum particles, not waves, upending centuries of ...

Ask the publishers to restore access to 500,000+ books. An icon used to represent a menu that can be toggled by interacting with this icon. A line drawing of the Internet Archive headquarters building ...

Abstract: Sound field reconstruction aims to estimate pressure fields in areas lacking direct measurements. Existing techniques often rely on strong assumptions or face challenges related to data ...

Perhaps one of the most famous experiments in physics has been giving us the wrong message all these years. For nearly two centuries, the double-slit experiment has been providing a direct visual ...

Download CBSE Class Physics 12 Pre-Board Sample Papers 2025–26 with solutions for all subjects in free PDF format. These papers are curated by experts as per the latest CBSE syllabus and exam pattern.

"Dark photon" theory says light's interference patterns may emerge from quantum particles, not waves, upending centuries of ...

When black holes collide, the impact radiates into space like the sound of a bell in the form of gravitational waves. But ...