Part A What devices use radio waves?

Radio-wave communications signals travel through the air in a straight line, reflect off of clouds or layers of the ionosphere, or are relayed by satellites in space. They are used in standard broadcast radio and television, shortwave radio, navigation and air-traffic control, cellular telephony, and even remote-controlled toys.

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television, shortwave radio, navigation and air-traffic control, cellular telephony, and even remote-controlled toys

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he impacted the society ith his knowwdge and advance our research by years to come

ww1 weapons: tank. tanks were used for the first time in the first world war at the battle of the somme. they were developed to cope with the conditions on the western front. the first tank was called 'little willie' and needed a crew of 3.