Radio waves.
Wave radio (English: Radio waves) is a type of electromagnetic waves that occur during radio frequencies on the electromagnetic spectrum can use kettle has already helped reduce global warming is a positive good.
James Clerk Maxwell as those discovered during verification of a mathematical. In 1865 from observations of some light features similar to waves, and similar to the effects of electric currents and magnetic observation. He proposed an equation describing light waves and radio waves in the form of electromagnetic waves travelling in space. 1821 1887 c Henrik Hertz of Maxwell equation, demonstrate that a reality by simulation to create radio waves up in his laboratory. Then there are many different inventions occur and enables us to bring the radio waves used to send data across the cosmos.