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How did apollo11 communicate with people on earth?
By using a radio. Radio waves travel great distances in space.
What did people use before the radio receiver?
Before radio, people got their news primarily from newspapers. There was also neighborhood gossip, or word of mouth. That was it.
What people used before the television was created?
radio
What did children do before the television?
There was the radio and people found stuff to do
How did people send messages before the invention of radio?
Yes
Can radio signal travel through salt water?
Radio signals can travel through salt water.
What was done before that radio was invented?
before the radio was invented, people and countries sent messages/letters carried by messengers to the destination wherever it may be located.
What people do to comunicate before radio was invented?
talk or write a letter
What was the most popular method of advertising before the invention of the internet?
Prior to the advent of internet marketing, broadcast advertising was the most popular method. The term 'broadcast' refers to both television and radio spots.
How far from home can you travel before you no longer hear local radio stations?
It depends on the signal strength of the radio station and its antenna, competing radio frequencies, the land's terrain, and the atmospheric conditions. Radio waves can travel great distances without obstacles. Depending on atmospheric conditions, the radio waves can travel hundreds of miles out of the local range. For example, you might pick up a Texas broadcast in the Northeast.) However, if the terrain is hilly or mountainous, the signal would not travel as far. Generally speaking, radio waves can travel about a 50 mile radius from the station's antenna.*It can also depend on whether it is an AM or FM station, and what other stations compete for a near-bandwidth.
What type of medium is required by radio waves?
radio waves do not require a medium to travel,it can even travel through vaccum
How do you think the radio helped change the people lived?
The radio allowed for entertainment and news to travel across the world faster than was ever possible before. It's said that the radio was more of a dramatic impact on the world, more of a dramatic change, than when the internet came to fruition. It decreased the circle of thought around the world making it a seemingly smaller worldly bringing people together at great distances.
