Physics Girl is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and ...

The meniscus lens' concave surface faces the first two lens elements, and thus incoming light rays, while the convex surface interfaces with the sensor, focusing light onto the sensing surface. This ...

Earlier today, we got a simple but interesting question emailed to us from a guy named Rich: "Anyone ever notice that on the new Jeep Cherokees, the reflection that you see on the back panel is upside ...

Plano concave mirror is a mirror which is arrange reflective coating on the concave surface of Optical glass plano concave spherical lens substrates.The diameter, thickness, focal length or radius of ...

Led by Professor Dong Woog Lee in the School of Energy and Chemical Engineering at UNIST, the research team has drawn ...