An antenna is one of the fundamental parts of a radio; it is not only needed to receive radio waves, but to transmit them as well. In 1887 Heinrich Hertz (1857-1894) discovered that electromagnetic radio waves were produced by the oscillations of...

Physically, an antenna is an arrangement of conductors that generate a radiating electromagnetic field in response to an applied alternating voltage and the associated alternating electric current, or can be placed in an electromagnetic field so that...

JAN BARRY, Staff Writer The Record (Bergen County, NJ) 03-22-1996 HEARING ON RADIO ANTENNA DELAYED -- RINGWOOD'S 2 TOWER DISPUTES UNRESOLVED By JAN BARRY, Staff Writer Date: 03-22-1996, Friday Section: NEWS Edition: 2 Star P RINGWOOD -- Keeping abreast of maneuvers involving...

Once upon a time aircraft were only operated when the pilot had a clear view of the ground and visual reference was the only means of navigation. Adaptation of the magnetic compass and development of the gyroscope were pivotal components in promotion of...

An automotive appendage that often goes unnoticed — unless it loses a battle with the automatic car wash — is disappearing in the face of changing technology, tastes and economics.The stalwart stick, pole or fixed-mast antenna, mounted on the body of nearly every vehicle two...

Hundreds of rioters pelted police with rocks and set off stun grenades Tuesday in an Arab town in northern Israel where anger over a cellular phone antenna ignited clashes. Police said they responded with live fire and nearly two dozen people were injured.Mayor Hamed Kheir...