 you know, a form of microwave photonic radar. The system has a range of 373 miles. Do you know how fast you're going to cover 373 miles at Mach 20? There it is. Boom. I mean, between the time they see it on the radar and it hits the ground traveling at Mach 20, 20 times the speed of sound. What is the speed of sound? You know, it's 100 meters per second, 700 and something feet per second at sea level.