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Guglielmo Marconi (Marchese Guglielmo Marconi), an Italian inventor, proved the feasibility of radio communication. He sent and received his first radio signal in Italy in 1895. By 1899, he flashed the first wireless signal across the English Channel, and two years later received the letter "S", telegraphed from England to Newfoundland. This was the first successful trans-Atlantic radiotelegraph. Wikipedia has a good article on this Nobel Prize winner, and a link is provided.
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∙ 15y ago
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∙ 13y agoRadio waves were first predicted by mathematical work done in 1865 by James Clerk Maxwell. Maxwell noticed wavelike properties of light and similarities in electrical and magnetic observations. He then proposed equations, that described light waves and radio waves as waves of electromagnetism that travel in space. In 1887, Heinrich Hertz demonstrated the reality of Maxwell's electromagnetic waves by experimentally generating radio waves in his laboratory.
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∙ 13y agoProfessor Richard Threlfall discovered the radio wave.
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∙ 14y agoHeinrich Hertz
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Does mechinal waves have radio waves?
no, mechanical waves are not radio waves
How are electromagnetic waves different to radio waves?
Radio waves ARE electromagnetic waves.
What is a radio wave?
Radio waves are electromagnetic waves. The radio waves have the longest wavelengths in the electromagnetic spectrum. A radio wave has a much longer wavelength than does visible light. We use radio waves extensively for communications.
Was the radio named after radio waves or were radio waves named after the radio?
Radio waves were discovered before the radio was invented.
Radio waves and cell pjones?
Radio waves and cell phones
Does mechinal waves have radio waves?
no, mechanical waves are not radio waves
Are radio waves transverse waves or longitudinal waves?
Transverse. Radio waves are electromagnetic waves, which are transverse.
How are electromagnetic waves different to radio waves?
Radio waves ARE electromagnetic waves.
Are radar waves visible?
No. Radar waves are one category of radio waves. Think of all the radio waves that are all around you right now . . . AM radio, FM radio, police and fire radio, highway patrol radio, taxi radio, television picture and sound radio waves, cellphone radio waves, garage-door-opener radio waves, bluetooth radio waves, WiFi waves, microwaves ... and you can't see any of them ! Radar waves can easily be there in the group.
How are radio and television waves added to em radio waves?
by changing the amplitude or frequency of the radio waves.
What radio waves?
Radio waves are electromagnetic waves occurring on the radio frequency portion of the electromagnetic spectrum.
How are radio waves formed?
How are radio waves formed?
Are AM radio waves are an example of longitudinal waves?
No. Radio waves are a type of electromagnetic waves; electroctromagnetic waves are transverse waves.
When was Radio Waves - radio station - created?
Radio Waves - radio station - was created in 2010.
How are radio waves and television signals added to EM radio waves?
by changing the amplitude or frequency of the radio waves.
Why the radio waves are similar to light waves but not sound wavesexplain?
Radio and light waves are electromagnetic waves, sound waves are not.
What is a radio wave?
Radio waves are electromagnetic waves. The radio waves have the longest wavelengths in the electromagnetic spectrum. A radio wave has a much longer wavelength than does visible light. We use radio waves extensively for communications.
