Submarines
00:00 - 06:26
6m 26s
Beakman explains what a submarine is and how buoyancy and density affect a submarine rising and sinking. Then he makes a DIY submarine from a soda bottle.

Comments

Please sign in to write a comment.
Video Transcript

Related Clips

Beakman explains that steam has a lot of power behind it and that a man named Hero in Ancient Greece figured out how to use it to make a ball spin. However, it wasn't until the invention of the steam engine that people knew how to use steam. Beakman uses a model to explain how the steam moves the piston back and forth to turn a wheel, which is how steam engine trains work.
George floats away on a bundle of balloons, and Ted saves him by gathering a larger bundle of balloons. This clip can be used to discuss buoyancy.
There is a leak in the dam, and the CyberSquad helps fix it to prevent damage from being done to the kingdom of Happily-Ever-After. The group initially tries using mud and sandbags to plug the hole, but those options don't work. Digit investigates the hole and notes that it's bigger on the inside of the dam than it is on the outside. Digit makes a model of the hole, and they use the model to create a solution.
Beakman explains how a helicopter has a rotating wing on top that helps it stay up because of the air pressure difference created by the shape of the wing. Then he explains that the back propeller helps steer the helicopter.
Beakman explains how gas is explosive and causes the combustion engine in the car to work. He uses a model engine with a side view and demonstrates what is happening with the gasoline when it explodes to move the engine parts. Beakman shows how the engine allows the wheels to turn by relating it to riding a bike. Up and down motion of the pedals is converted to turning the wheels through the chain. Same in the car with the pistons turning gears and thus the wheels.