electromagnetic waves

1. Waves composed of undulating electrical fields and magnetic fields . The different kinds of electromagnetic waves, such as light and radio waves , form the electromagnetic spectrum . All electromagnetic waves have the same speed in a vacuum , a speed expressed by the letter c (the speed of light ) and equal to about 186,000 miles (or 300,000 kilometers ) per second.

Example Sentences

These electromagnetic waves produce oscillations in the antenn of a receiving station.

From Project Gutenberg

Physics tells us that certain electromagnetic waves start from the sun, and reach our eyes after about eight minutes.

From Project Gutenberg

Theory that light consists of electromagnetic waves—Clerk-Maxwell, England, 1873.

From Project Gutenberg

It absorbed and dissipated electromagnetic waves rather than reflecting them.

From Project Gutenberg

This energy is transmitted through the free ether in waves, which are known as electromagnetic waves.

From Project Gutenberg