1. Find the (a) maximum frequency, and (b) the minimum wavelength of X-rays produced by 30 kV electrons. 2. The photoelectric ...

The Creative Zen Air SXFI are sleek in-ear wireless headphones, with IPX5 water resistance and an impressive 35-40 hour battery life through the charging case. While some advanced features stumble in ...

A WOMAN in her twenties has revealed that she often feels like a teenage boy because she can’t stop thinking about sex. The ...

The U.S. military is heading for a big, new problem with its radars. To meet soaring demand for TikTok videos and other apps ...

If I ask you to picture a radio telescope, you probably imagine a large dish pointing to the sky, or even an array of dish ...

Puzzlingly, the "knots" clock a faster speed when seen in X-rays than they do in radio wavelengths. scientists said. "The ...

In the race to develop robust perception systems for robots, one persistent challenge has been operating in bad weather and ...

An elusive particle that first formed in the hot, dense maelstrom of the early universe has puzzled physicists for decades.

It can deliver seven wavelengths of visible light ... These pieces also deliver a "micronized current" and a "high-frequency polarized current" via electrodes placed in the handpieces.

Since he was 15, Polacheck had his own ham radio station (the use of the radio frequency spectrum for non-commercial message ...

Snell’s Law explains light refraction at material boundaries, a principle crucial to fiber optics, lens design, and advanced ...

Photons released by the gain medium reach a critical density and start exciting the medium themselves, and the whole sample ...