Doppler radar is one of the most revolutionary and lifesaving tools of modern meteorology, which has experts worried about ...

The long-wire dipole antenna is effective for low-frequency systems. Adding LC traps makes a single-band dipole antenna into ...

In the nanometer range (billionth of a meter), interactions occur between light and matter that do not happen on larger ...

and wavelength (distance between the highest/lowest points of two consecutive waves). The highest point of a wave is known as 'crest', whereas the lowest point is known as 'trough'. Electromagnetic ...

RADAR stands for RAdio Detecting And Ranging and as indicated by the name, it is based on the use of radio waves. Radars send out electromagnetic waves similar ... that is really just sea "clutter".

Astronomers have discovered a mysterious new object in our Milky Way, which is emitting X-rays and radio waves at the same time.

Abstract: Electromagnetic wave absorbers consisting of thin transparent sheets of conducting medium are studied in this paper. In particular, a result known since the 1930 s that, for plane waves ...

Every 44 minutes, a mysterious space object nearly 15,000 light-years away sends out a blast of radio waves and high-energy X ...

The source of this excitement: the first-ever detection of X-rays from a long-period radio transient, ASKAP J1832- 091, a ...

Zero-resistance-states occur about magnetic fields B = 4/5 B f and B = 4/9 B f, where B f = 2πfm*/e,m* is the electron mass, e is the electron charge, and f is the electromagnetic-wave frequency.