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Over several years starting in 1894 the Italian inventor Guglielmo Marconi built the first complete, commercially successful wireless telegraphy system based on airborne Hertzian waves (radio transmission). These were very wide band spark gap radios where anyone transmitting interfered with anyone else trying to transmit (i.e. there was only one "channel" that all users had to share).
What else can I help you with?
What are some of the earliest maps which still exist today?
the map of the stars
Why pieces of earth's earliest crust do not exist today?
Earth's earliest crust, which formed over 4 billion years ago, has been recycled through processes like subduction, where it is pulled back into the mantle. This constant recycling of Earth's crust, along with the effects of erosion and weathering, means that no original pieces of the earliest crust remain intact today.
How many bands exist worldwide?
too many!Little Radio
Did Galileo build a radio telescope in 1602?
No. Nobody knew anything about radio at that time, and the word didn't even exist.
During which geologic time period did the earliest coal-forming forests exist?
During the Pennslyvanian and Mississippian Eras
Does a mechanical Brain exist?
Yes, there is a mechanical brain in existence. The earliest model form 1950 is known as SIMON.
What span of time did the worlds earliest civilizations exist?
The beginning of recorded Greek history was as early as 776 BC
Does radio still exist or not?
Yes radio still exists, and will continue to for the forseeable future.
Does a wire harness exist for the radio on a 1998 Lincoln Navigator?
YEs u can get them at autozone
How do you get pokeflute on pokeomon heartgold?
The pokeflute doesn't exist in your radio you can tune into a pokeflute channel.
Do you oceans gain earliest water considering evaporation and precipitation together?
On a long term between evaporation and condensation an equilibrium exist.
Who created the positive and negative electric change?
Nobody. Positive and negative electric changes exist from the earliest stages of the Big Bang.
