Engineering
Researchers from Santa Clara University, New Jersey Institute of Technology and the University of Hong Kong have been able to successfully teach microrobots how to swim via deep reinforcement learning, marking a substantial ...
Aug 5, 2022
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208
Computer Sciences
By redesigning how fluids are simulated, KAUST researchers have demonstrated a more than tenfold speed increase on the previous state of the art for slow-flowing viscous liquids.
Jul 28, 2022
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31
Electronics & Semiconductors
Researchers have successfully tested a device that may one day use the chemical biomarkers in sweat to detect changes in a person's health.
Jul 22, 2022
1
83
Energy & Green Tech
A team from the Department of Energy Engineering at the University of Seville has developed an experimental research focused on the design of a bio-inspired PEM fuel cell. The model they have obtained has reached a maximum ...
Jul 18, 2022
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3
Robotics
The Tin Man didn't have one. The Grinch's was three sizes too small. And for soft robots, the electronically powered pumps that function as their "hearts" are so bulky and rigid, they must be decoupled from the robot's body—a ...
Jul 14, 2022
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88
Engineering
Cilia are the body's diligent ushers. These microscopic hairs, which move fluid by rhythmic beating, are responsible for pushing cerebrospinal fluid in your brain, clearing the phlegm and dirt from your lungs, and keeping ...
May 25, 2022
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70
Engineering
Borrowing a technique from inkjet printers, researchers at Princeton Engineering have rolled out a pixel-by-pixel method to program and manufacture soft structures for use in robotics, biomedical devices or architectural ...
May 24, 2022
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113
Engineering
The complex aerodynamics around a moving car and its tires are hard to see, but not for some mechanical engineers.
May 12, 2022
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248
Engineering
Cleaning up legacy radioactive waste from nuclear weapons production has been a daunting, lengthy, and expensive process.
May 12, 2022
1
47
Automotive
Italian luxury carmaker Ferrari has issued a recall plan with Chinese regulators over potential brake problems in its vehicles, an official notice said Friday.
Apr 22, 2022
0
9
In physics, a fluid is a substance that continually deforms (flows) under an applied shear stress, no matter how small. Fluids are a subset of the phases of matter and include liquids, gases, plasmas and, to some extent, plastic solids.
In common usage, "fluid" is often used as a synonym for "liquid", with no implication that gas could also be present. For example, "brake fluid" is hydraulic oil and will not perform its required function if there is gas in it. This colloquial usage of the term is also common in medicine and in nutrition ("take plenty of fluids").
Liquids form a free surface (that is, a surface not created by the container) while gases do not. The distinction between solids and fluid is not entirely obvious. The distinction is made by evaluating the viscosity of the substance. Silly Putty can be considered to behave like a solid or a fluid, depending on the time period over which it is observed. It is best described as a viscoelastic fluid. There are many examples of substances proving difficult to classify. A particularly interesting one is pitch, as demonstrated in the pitch drop experiment currently running at the University of Queensland.
This text uses material from Wikipedia, licensed under CC BY-SA
