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"Radio waves" transmit music, conversations, pictures and data invisibly through the air, often over millions of miles -- it happens every day in thousands o...
A receiver that picks up waves that carry sound is called a radio. A radio sends the electric signal through speakers so the sound can be heard. Each radio station sends out radio waves of a certain frequency. A person changes a radio from one frequency to another to hear different stations.
Have you ever looked at a radio and wondered how it is able to create the sound from what seems like nothing? With this video you can finally learn the scien...
24 Δεκ 2008 · The Professor describes how a radio works. Specifically, he explains the concept of a carrier frequency and how the radio subtracts the noise from the signal...
The flow of the electricity creates radio waves that travel out the antenna and travel all the way to your radio. Your radio catches these radio waves which cause an electrical current in your radio. Your radio then turns this current into sound that you can hear!
30 Μαΐ 2023 · Now if you put the earplug in your ear, you will hear the radio station — that is the simplest possible radio receiver! This super-simple project will not work if you are very far from the station, but it does demonstrate how simple a radio receiver can be. Here's how it works.
Its amplifier strengthens that signal. A demodulator separates the signal from the carrier wave. And then a speaker converts the signal to the sound waves that you hear! Overview of radio waves, including discussion of frequency and amplitude modulation.
