One of the landmark discoveries of 19 th century physics was the realisation that electricity, magnetism and light are all connected. Experiments had already shown that the movement of electrical ...

How can we measure visible light? The electromagnetic spectrum includes all forms of light energy, known as electromagnetic radiation. (1) Different types of electromagnetic radiation such as radio ...

U.S. Army leaders are working to evolve with the ever-changing landscape of today’s battlefield, especially within the electromagnetic spectrum (EMS) realm. One way they are attempting to achieve this ...

Electromagnetic spectrum operations (EMSO) have rocketed to prominence across the U.S. military, complete with their own doctrine, billets and centers of excellence. Yet decades before EMSO was ...

Telescope mirror coatings (e.g., silver, gold, aluminum) determine which wavelengths of light are reflected. X-ray telescopes use specially shaped mirrors to reflect X-rays, which are normally ...

The Electromagnetic Battle Management system will be a new start in FY21. Radio waves, used with the direction finding system that the soldiers in the picture are testing, are one part of the ...