ⓘ Machines



A machine is a thing that is created by people to make work easier. It is a tool or invention which multiplies the effect of human effort. The machine produces a mechanical advantage. Some machines have many parts that move. Examples are bicycles and clocks. Some machines do not have parts that move. Examples are computers and telephones. People have used machines since before there was history. Often a machine will change one form of energy to another form of energy. Simple machines increase or change the direction of a force.


Sewing machine

A sewing machine is used to stitch fabric together with thread. Sewing machines were an invention of the industrial revolution that made it possible to sew faster than people could sew by hand. Some sewing machines are also used for embroidery. Since the invention of the first working sewing machine, generally considered to have been the work of Englishman Thomas Saint in 1790, the sewing machine has greatly improved the efficiency and productivity of the clothing industry. Home sewing machines are designed for one person to sew individual items while using a single stitch type. In a moder ...


Washing machine

A washing machine is a machine that washes dirty clothes. It contains a barrel into which the clothes are placed. This barrel is filled with water, and then rotated very quickly to make the water remove dirt from the clothes. Most washing machines are made so that detergent can be put into the machine. These can help make the clothes cleaner.


Simple machine

A simple machine is a device that can change the direction or the magnitude of a force, or the point where it is applied. This is done so that the force can be used to do work. All mechanical machines are made by combining simple machines. There are six basic "simple machines", as defined by Renaissance scientists: The wedge The pulley changes the point where a force is applied, and may also change its magnitude and direction. The wheel change the direction in which the force is applied. The screw that converts rotational motion to linear motion, and a rotational force to a linear force. T ...


Turing machine

Turing machine is a term from computer science. A Turing machine is a system of rules, states and transitions rather than a real machine. It was first described in 1936 by English mathematician and computer scientist Alan Turing. There are two purposes for a Turing machine: deciding formal languages and solving mathematical functions. Turing machines are one of the most important formal models in the study of computer science.


Machine code

Machine code is a computer program written in machine language. It uses the instruction set of a particular computer architecture. It is usually written in binary. Machine code is the lowest level of software. Other programming languages are translated into machine code so the computer can execute them. An instruction tells the process what operation to perform. Each instruction is made up of an opcode operation code and operands. The operands are usually memory addresses or data. An instruction set is a list of the opcodes available for a computer. Machine code is what assembly code and o ...

Electrostatic precipitator

Electrostatic precipitator

An electrostatic precipitator is a device to capture particles from a flowing gas. It uses the force produced by electrostatic charge. ESPs are used in many power plants which burn fuel to produce energy, such as in power stations. Any gas produced by fuel burning will pollute the air much less after being passed through an ESP.

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