What will actually happen, if you fill water into the LEGO pneumatic parts? Will they still work? And will they become hydrolics? Jacob -- Did you check the web site first?: (URL) (25 years ago, 8-Aug-99, to lugnet.robotics)
(...) The pneumatic compression cylinders, also called "pumps" are not airtight, and they wouldn't be watertight if filled with water. When you push on them they would apply pressure to the water all right, but when you pull on them they would (...) (25 years ago, 10-Aug-99, to lugnet.robotics)