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  2. History of artificial intelligence - Wikipedia

    An expert system is a program that answers questions or solves problems about a specific domain of knowledge, using logical rules that are derived from the knowledge of experts. The earliest examples were developed by Edward Feigenbaum and his students.

  3. NASA spinoff technologies - Wikipedia

    John Deere licensed the software and used it to develop self-driving farm equipment. As of 2016, as nearly 70% of North American farmland is cultivated by self-driving tractors, which rely on RTG that was developed at NASA. Another user of RTG is Comtech Telecommunications, which is a major provider of location-based services.

  4. Fourth Amendment to the United States Constitution - Wikipedia

    The Fourth Amendment (Amendment IV) to the United States Constitution is part of the Bill of Rights.It prohibits unreasonable searches and seizures.In addition, it sets requirements for issuing warrants: warrants must be issued by a judge or magistrate, justified by probable cause, supported by oath or affirmation, and must particularly describe the place to be searched and the persons or ...

  5. Killing of Trayvon Martin - Wikipedia

    On the night of February 26, 2012, in Sanford, Florida, United States, George Zimmerman fatally shot Trayvon Martin, a 17-year-old African-American boy. Zimmerman, a 28-year-old man of mixed race, was the neighborhood watch coordinator for his gated community where Martin was visiting his relatives at the time of the shooting.

  6. ICON A5 - Wikipedia

    Data from ICON Aircraft General characteristics Crew: one Capacity: one passenger Length: 23 ft (7.0 m) Wingspan: 34.8 ft (10.6 m) Height: 8.1 ft (2.5 m) Empty weight: 1,080 lb (490 kg) Gross weight: 1,510 lb (685 kg) Fuel capacity: 20 US gal (76 l) Powerplant: 1 × Rotax 912 iS fuel-injected, air and liquid cooled four cylinder aircraft engine, 100 hp (75 kW) Propellers: 3-bladed composite ...

  7. Human - Wikipedia

    The genus Homo evolved from Australopithecus. Though fossils from the transition are scarce, the earliest members of Homo share several key traits with Australopithecus. The earliest record of Homo is the 2.8 million-year-old specimen LD 350-1 from Ethiopia, and the earliest named species are Homo habilis and Homo rudolfensis which evolved by 2.3 million years ago.

  8. Standardized test - Wikipedia

    The teacher goes around the room and asks each student a different question. Some questions are harder than others. Driving Practical skills Each driving student is asked to do the same things, and they are all evaluated by the same standards. Some driving students have to drive on a highway, but others only have to drive slowly around the block.

  9. Gravity - Wikipedia

    where F is the force, m 1 and m 2 are the masses of the objects interacting, r is the distance between the centers of the masses and G is the gravitational constant.. Current models of particle physics imply that the earliest instance of gravity in the Universe, possibly in the form of quantum gravity, supergravity or a gravitational singularity, along with ordinary space and time, developed ...