Robots help to answer age-old question of why fish school

A fish school is a striking demonstration of synchronicity. Yet centuries of study have left a basic question unanswered: Do fish save energy by swimming in schools? Now, scientists from the Max Planck Institute of Animal ...

NASA InSight's 'Mole' is out of sight

NASA's InSight lander continues working to get its "mole"—a 16-inch-long (40-centimeter-long) pile driver and heat probe—deep below the surface of Mars. A camera on InSight's arm recently took images of the now partially ...

Treeswift's autonomous robots take flight to save forests

Forests cover 30% of the Earth's landmass, but that number is on the decline. Despite forests' crucial role in conserving wildlife and processing carbon dioxide, many are threatened by deforestation and wildfires. Complicating ...

Image: Simulated satellite rendezvous

A camera closes in on a detailed model satellite, to simulate the extreme "guidance navigation and control" (GNC) challenge of rendezvousing with an uncooperative target, such as a derelict satellite or distant asteroid.

US probe to touch down on asteroid Bennu on October 20

After a four-year journey, NASA's robotic spacecraft OSIRIS-REx will descend to asteroid Bennu's boulder-strewn surface on October 20, touching down for a few seconds to collect rock and dust samples, the agency said Thursday.

NASA's new Mars rover will use X-rays to hunt fossils

NASA's Mars 2020 Perseverance rover has a challenging road ahead: After having to make it through the harrowing entry, descent, and landing phase of the mission on Feb. 18, 2021, it will begin searching for traces of microscopic ...

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Robot

Robot is a virtual or mechanical artificial agent. In practice, it is usually an electro-mechanical system which, by its appearance or movements, conveys a sense that it has intent or agency of its own. The word robot can refer to both physical robots and virtual software agents, but the latter are usually referred to as bots. There is no consensus on which machines qualify as robots, but there is general agreement among experts and the public that robots tend to do some or all of the following: move around, operate a mechanical limb, sense and manipulate their environment, and exhibit intelligent behavior, especially behavior which mimics humans or other animals. In South Africa, robot is an informal and commonly used term for a set of traffic lights.

Stories of artificial helpers and companions and attempts to create them have a long history but fully autonomous machines only appeared in the 20th century. The first digitally operated and programmable robot, the Unimate, was installed in 1961 to lift hot pieces of metal from a die casting machine and stack them. Today, commercial and industrial robots are in widespread use performing jobs more cheaply or with greater accuracy and reliability than humans. They are also employed for jobs which are too dirty, dangerous or dull to be suitable for humans. Robots are widely used in manufacturing, assembly and packing, transport, earth and space exploration, surgery, weaponry, laboratory research, and mass production of consumer and industrial goods.

Modern robots are usually used in tightly controlled environments such as on assembly lines because they have difficulty responding to unexpected interference. Because of this, most humans rarely encounter robots. However, domestic robots for cleaning and maintenance are increasingly common in and around homes in developed countries, particularly in Japan. Robots can also be found in the military.

This text uses material from Wikipedia, licensed under CC BY-SA