Cis forCombine harvester
A combine harvester is a large machine that harvests grains such as wheat, oats and barley. The combine not only removes the grain heads from the stalks, but it also separates the individual grains themselves from the heads.
The combine harvester was invented in the United States in 1834, but a commercial version was invented in Australia in 1885.
Dis forDrone (aircraft)
A drone is a small aircraft that flies without a pilot inside it. It is controlled remotely by a person on the ground or programmed to fly automatically.
The word drone began to be used for pilotless aircraft in the early 1900s. The name was inspired by male bees, also called drones, which do not gather food and were used as a metaphor for machines that operate without a human inside.
A ferry is a kind of boat that takes people and vehicles on short trips across water to the other side. Ferries usually run on a regular schedule. Ferrys are often used as a cheaper alternative to bridges, which can be very expensive to build. Sometimes boats that travel around a longer route on a regular service are also called ferries.
Fis forFire engine
A fire engine, fire truck, or fire appliance is a vehicle especially designed for putting out fires. Fire trucks usually carry hoses, cutting equipment, ladders, fire extinguishers and other general tools. Some fire trucks have a water supply as well, most have a powerful pump that can draw water from a fire hydrant.
A forklift, also called a lift truck, fork truck or forklift truck is a fairly small truck that has two prongs on the front that are designed to lift things. Forklifts are commonly used for moving large boxes around inside warehouses.
A glider is a type of aircraft that doesn't have engines. Gliders are usually towed up into the air by another plane and can glide a very long way before they reach the ground.
Some gliders, called motor gliders have small engines for takeoff and to keep them in the air longer.
