Have you ever wondered what a Sonic Boom really was? Consider this great explanation. Using this reasoning, what do you think a sonic boom looks like in water? Could we ever have a "photo boom," a sonic boom with light instead of sound?
For those with more advanced knowledge, how could you mathematically describe a sonic boom with a coordinate plane? What MACH creates the loudest sonic boom? What happens if the speed of the plane is variable? Feel free to respond with answers, hints, or ideas of where to go with these questions.
Image credit: NASA