Your kitchen uses 450 watts of lighting. How much does it cost if the lights are on for 8 hours a day, every day for a year if the local electric company charges 9 cents per kWh?
Most of the time, people use foam cannons to wash their vehicle with their pressure washer because a pressurized washer can knock dirt off better than a standard garden hose. However, if you enjoy having a car that is even cleaner than what a pressure washer can do, then you need a foam cannon.
Fun Facts about Internal Combustion Engines for Kids. Cars have more than just one piston and valve. The more pistons, the more power. A cannon is a very simple type of combustion engine. The cannonball is packed into the cannon, along with gun powder. When the gun powder is lit, it creates hot gas and pressure.