Hydraulics
A hydraulic device
fluid
A pipe or tube.
Telegraph.
An airbrush is a device that uses compressed air to spray paint or other liquids onto surfaces. It is commonly used in art, makeup application, and automotive painting.
A remote control is used to control an electronic device form a distance without wires. It uses infrared or radio frequencies to transmit the data to the device.
Because liquids are basically just a collection of particles with barely enough energy to separate them, they are very closely packed and any pressure applied must be very high to force them closer. As you apply a force to them, they cannot easily compress, so they pass the force on. (This is the principal of hydraulic pressure.)
polling
easy: Both use pressure now hydrolics used liquids (liquids cannot be compressed) to exhert pressure pneumatics uses gasses which are compressed to exhurt pressure thtas the basics anyway
A telegraph relies on a wire to transmit a message to an individual on the receiving end. A cell phone is a wireless device that uses radio waves to transmit a signal.
A small pen-like device that uses pressure instead of ink is called a stylus. A stylus is used to operate touchscreen devices such as a Nintendo DS or an iPad.
Manometer is a device that is being used to measure pressure. It uses alcohol because it has a low vapor pressure.