Robotics
Soft inflatable robots have emerged as a promising paradigm for applications that require inherent safety and adaptability. However, the integration of sensing and control systems in these robots has posed significant challenges ...
Sep 15, 2023
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21
Robotics
This robot can swim under the sand and dig itself out too, thanks to two front limbs that mimic the oversized flippers of turtle hatchlings.
Jul 18, 2023
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68
Electronics & Semiconductors
Researchers have developed next-generation smart textiles—incorporating LEDs, sensors, energy harvesting, and storage—that can be produced inexpensively, in any shape or size, using the same machines used to make the ...
Apr 21, 2023
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134
Energy & Green Tech
They are considered the "Holy Grail" of battery research: so-called "solid-state batteries." They no longer have a liquid core, as is the case with today's batteries, but consist of a solid material. This leads to several ...
Mar 16, 2023
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69
Engineering
Pushing a shovel through snow, planting an umbrella on the beach, wading through a ball pit, and driving over gravel all have one thing in common: They all are exercises in intrusion, with an intruding object exerting some ...
Jan 19, 2023
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53
Robotics
Soft robots, or those made with materials like rubber, gels and cloth, have advantages over their harder, heavier counterparts, especially when it comes to tasks that require direct human interaction. Robots that could safely ...
Dec 1, 2022
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75
Electronics & Semiconductors
Individuals who have limited hand function can soon have a simple way of controlling devices such as computers, smartphones, and wheelchairs by wearing a smart mouthguard that translates complex bite patterns accurately and ...
Oct 11, 2022
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117
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
Robotics
A paper published in the April 2022 issue of IEEE Robotics and Automation Letters outlines the AMBER team's method and represents the first instance of combining hybrid zero dynamics (HZD)—a mathematical framework for generating ...
Jun 7, 2022
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232
Robotics
Researchers at the Max Planck Institute for Intelligent Systems (MPI-IS), Cornell University and Shanghai Jiao Tong University have developed collectives of microrobots which can move in any desired formation. The miniature ...
Apr 26, 2022
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157
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
