SETTING THE BENCHMARK

Electromagnetic waves comprise electric and magnetic fields. A radio “frequency” is an electromagnetic wave that uses alternating current (AC). We use the term “frequency” because we measure how frequently the wave repeats itself each second. These waves, therefore, are defined as frequent,...

Light detection and ranging (lidar) technology is a remote sensing feature most notably used in newer model cars that is also employed to safely guide robots and autonomous vehicles on manufacturing floors and warehouses. Lidar has been used for over 20 years by the U.S. Department of Agriculture...

Frequency spectrum has long been taken for granted, from the early days of tuning an amplitude-modulated (AM) radio to a favorite sports or news program to making a call on a mobile telephone. Communication happens because radio waves travel across the air from sources to destinations without...