Kirigami is a traditional Japanese art form that entails cutting and folding paper to produce complex three-dimensional (3D) ...

The aim of this work is to build an ultrasonic device which is basically one kind of a radar system to get exact distance and approximate 2D shape for fixed objects placed around the device based on ...

Abstract: A solid-state prism-shaped Fabry-Perot interferometer allows absorption measurements using a backward wave oscillator (BWO) continuous-wave source in the terahertz range. When a liquid ...

Scientists have released the first X-ray images of a mysterious, sphere-shaped object recovered in Colombia, which locals claim is of alien origin. The so-called 'UFO' was spotted in March over ...