Other
Science and technology conferences are engines of innovation—essential to the incubation of new ideas, the dissemination of research, and the spawning of new technologies. But this year, with no warning, conferences around ...
Apr 16, 2020
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1
Engineering
The maglev train represents a type of modern urban rail transit transportation tool, boasting many technical advantages such as low noise, green environmental protection, small turning radius, good stability and high comfort. ...
Jan 16, 2024
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Business
Ireland fined WhatsApp for breaching strict European Union privacy rules in a case that has exposed divisions among EU watchdogs over how to regulate its parent company, Meta.
Jan 19, 2023
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4
Automotive
The European Union threatened Monday to take retaliatory measures against the United States for electric car subsidies that favor domestic manufacturers.
Nov 7, 2022
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Engineering
The C-17 Globemaster III aircraft fleet currently uses winch cables made of steel to pull pallets, vehicles and other items onto the aircraft from the ground via the aft ramp.
Feb 25, 2020
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3
Business
The grounding of the 737 MAX for more than four months after two deadly accidents has tarnished Boeing's reputation, but it still has the confidence of US policymakers.
Aug 4, 2019
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1
Energy & Green Tech
In a recent study published in the journal Environmental Science and Ecotechnology, scientists from Jinan University discuss a new, eco-friendly way to clean water. They've discovered a method called "piezoelectric activation ...
Jan 3, 2024
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11
Business
Govs. Brian Kemp of Georgia and Chris Sununu of New Hampshire on Thursday immediately banned the use of TikTok and popular messaging applications from all computer devices controlled by their state governments, saying the ...
Dec 15, 2022
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Business
The U.S. tech sector is growing 10 times faster and has wages twice as high as the rest of the economy. This industry also wins the race for high profits and stock returns.
Mar 1, 2022
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7
Business
The University of Wisconsin System has joined a number of universities across the nation that have banned the popular socail media app TikTok on school-owned devices.
Jan 24, 2023
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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
