Robot

A robot is a machine.

It can do jobs on its own. Some robots look like people.

Others are used in big factories.

They can lift heavy things. They can work in places that are too hot. They can even go to space. Robots help us do hard work. They make our lives easier.

A robot is a machine.

It can follow a set of steps from a computer. Most robots do jobs instead of looking pretty. Some robots look like people. These are called humanoids.

Many robots work in big factories.

They can lift heavy metal. They can also work in dangerous places. This includes outer space or the deep sea.

People have built moving machines for a long time. In ancient Greece, engineers made machines that used steam.

In China, Su Song built a water clock. It had small figures that chimed the hours.

In the 13th century, al-Jazari made a machine that served drinks.

Later, George Devol built the first digital robot. It was named Unimate. In 1961, it worked for General Motors. It lifted hot metal from machines. This kept humans safe from the heat.

A robot is a special kind of machine.

It can follow a set of steps using a computer. This field of study is called robotics. Most robots are built to do a specific job well. They often care more about working than looking pretty. Some robots look like people, which are called humanoids.

Others are used in big factories to do hard work.

These machines can go where humans cannot easily go. They might work in outer space or the deep sea. They can also do jobs that are too dangerous for people.

Robots work by following instructions from a control device.

This device can be inside the robot or outside. Some robots are autonomous, meaning they can act on their own. Other robots are semi-autonomous and need a person to help. A robot might use sensors to feel its surroundings. It can then process that information to make a move. This allows a robot to move parts of itself. It can even manipulate things in its environment. This makes it seem like the machine is thinking.

People have dreamed of moving machines for a very long time.

Ancient Greek engineers made machines that used steam or water. In China, Su Song built a water clock in 1066. This clock had little figures that chimed the hours. In the 13th century, al-Jazari built a machine that served drinks.

Around 1495, Leonardo da Vinci sketched a mechanical human. It could sit up and move its head. These early machines were often called automata.

Modern robots became more advanced with new technology. In 1948, William Grey Walter created electronic autonomous robots in England. Later, George Devol built the first digital programmable robot.

He named it Unimate in 1954. In 1961, General Motors bought it for their factory. It lifted hot metal at the Inland Fisher Guide Plant. This was in Ewing Township, New Jersey. This helped keep human workers safe from the heat. The word "robot" actually came from a Czech play in 1923.

Today, we see robots in many parts of our lives. Some robots are small, like microscopic nanorobots. Others are large, like the MQ-1 Predator drone.

We even see robots that look like animals. Some are used as therapy dogs to help people. In the future, we might see more autonomous cars on roads. We might also see more robots helping us in our homes. This technology changes how we work and live every day. It is a field that is still growing fast.

A robot is a machine capable of automatically carrying out a complex series of actions. Most robots are programmable via a computer, which allows them to follow specific instructions. While some robots are designed to look like people, most prioritize functionality over aesthetics. They are built to perform specific tasks efficiently. This field of study, which covers the design, construction, and operation of these machines, is called robotics. Robotics also involves the computer systems used for sensory feedback and information processing.

Robots function by following instructions from a control device. This device can be internal, located inside the machine, or external, located outside of it. Some robots are autonomous, meaning they can operate on their own to some degree. Others are semi-autonomous and require human guidance. To interact with the world, many robots use sensors to perceive their environment. They process this data electronically to move their physical parts or manipulate objects. This process can make a machine appear to exhibit intelligent behavior or thought.

Robots come in many different forms and types. Humanoid robots, such as Honda's ASIMO, are designed to resemble the human body. There are also industrial robots used for manufacturing, such as articulated welding robots. Medical robots assist in surgeries, while patient assist robots help in healthcare. Some machines are designed for specific environments, like UAV drones or microscopic nanorobots. Even bio-inspired robotics seeks to mimic nature, leading to the development of soft robotics.

Humans have imagined automated devices since ancient civilizations. Greek mythology tells of Talos, a bronze man who guarded Crete. In the 4th century BCE, Archytas described a steam-operated mechanical bird. Hero of Alexandria also created devices powered by hydraulics and steam. In China, the philosopher Mozi and Lu Ban reportedly built flying wooden birds in the 5th century BCE. By 1066, the inventor Su Song built a water clock with mechanical figurines.

During the Middle Ages and Renaissance, automation became more complex. In the 13th century, Ismail al-Jazari built a humanoid waitress that could serve drinks. Around 1495, Leonardo da Vinci sketched a mechanical humanoid capable of moving its head and arms.

Later, in the 18th century, Jacques de Vaucanson exhibited a mechanical duck in France. The 19th century saw the rise of remote-controlled systems. In 1877, Louis Brennan invented a torpedo guided by wires. By 1904, Leonardo Torres Quevedo demonstrated the Telekino, which controlled a tricycle remotely.

The modern era of robotics began with electronic and digital advancements. In 1948, William Grey Walter created the first electronic autonomous robots in Bristol, England. In 1954, George Devol built the Unimate, the first commercial digital programmable robot. In 1961, General Motors used the Unimate to lift hot metal at a plant in New Jersey. The term "robot" itself was coined in 1923 by Czech author Karel Čapek. It comes from the Czech word for forced labor or drudgery.

Robots serve many important roles in modern society. They replace humans in repetitive, dangerous, or extreme environments. This includes working in outer space or at the bottom of the sea. However, their rise brings concerns about technological unemployment and ethical issues in military combat. As technology advances, autonomous cars and home robotics are expected to become more common. The distinction between machines and living things continues to be explored through fields like synthetic biology.