The use of light waves to detect moving objects such as cars and airplanes, via radar technology, is ubiquitous in modern technologies. Explain how wave diffraction, reflection, and interference are used in conventional radar technology, such as a police officer's device for measuring the speed of passing vehicles. Also describe a modern technological innovation that has been developed to evade detection by light waves, and provide an outline of how it functions.

In your responses to classmates, compare both your examples and your analysis; what can you learn from these findings?