Business
Germany's air force said Wednesday it had refused delivery of two Airbus A400M transport planes over technical faults, saying bolts holding the propellers on some already operational aircraft were loose.
Nov 13, 2019
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3
Business
Boeing reported a $1.64 billion loss for the third quarter as it delivered fewer of its best-selling but problem-plagued 737 Max airliner and sunk more money into building two new Air Force One presidential jets.
Oct 25, 2023
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18
Telecom
In the event of fires, earthquakes, or in other emergency situations, rescue forces are often called to free persons caught in buildings. These rescue missions are very risky: Dangers are difficult to assess in advance and ...
Apr 16, 2020
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Business
Hollywood's video game performers announced they would go on strike Thursday, throwing part of the entertainment industry into another work stoppage after talks for a new contract with major game studios broke down over artificial ...
Jul 25, 2024
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Automotive
70% of speeding motorists agree that seeing Community Speed Watch activity would make them drive slower in future.
Jun 13, 2024
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13
Business
Passenger traffic at European airports returned to pre-COVID levels in the first half of the year as the sector finally "turned the corner" on the pandemic crisis, the main industry association said on Wednesday.
Jul 31, 2024
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In physics, a force is any influence that causes an object to undergo a change in speed, a change in direction, or a change in shape. In other words, a force is that which can cause an object with mass to change its velocity (which includes to begin moving from a state of rest), i.e., to accelerate, or which can cause a flexible object to deform. Force can also be described by intuitive concepts such as a push or pull. A force has both magnitude and direction, making it a vector quantity. Newton's second law, F=ma, was originally formulated in slightly different, but equivalent terms: the original version states that the net force acting upon an object is equal to the rate at which its momentum changes.
Related concepts to force include: thrust, which increases the velocity of an object; drag, which decreases the velocity of an object; and torque which produces changes in rotational speed of an object. Forces which do not act uniformly on all parts of a body will also cause mechanical stresses, a technical term for influences which cause deformation of matter. While mechanical stress can remain embedded in a solid object, gradually deforming it, mechanical stress in a fluid determines changes in its pressure and volume.
This text uses material from Wikipedia, licensed under CC BY-SA
