Robotics
Pangolins are fascinating creatures. This animal looks like a walking pine cone, as it is the only mammal completely covered with hard scales. The scales are made of keratin, just like our hair and nails. The scales overlap ...
Jun 20, 2023
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344
Robotics
A new type of micromotor—powered by ultrasound and steered by magnets—can move around individual cells and microscopic particles in crowded environments without damaging them. The technology could open up new possibilities ...
Oct 25, 2019
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254
Energy & Green Tech
News from Toyota: On Tuesday the car marker announced it has a heat-resistant magnet that uses significantly less neodymium, a rare-earth element—reducing the amount of neodymium use by up to 50 percent.
Engineering
3D-stacked electronics made of interconnected vertical layers of chips are the next generation in energy efficient high-performance devices.
Sep 13, 2023
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1
Energy & Green Tech
As the population ages and with the advancements in medical technology, the number of patients using implanted electronic devices, such as artificial pacemakers and defibrillators, is increasing worldwide. Currently, the ...
Apr 18, 2022
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10
Engineering
Excess heat from electronic or mechanical devices is a sign or cause of inefficient performance. In many cases, embedded sensors to monitor the flow of heat could help engineers alter device behavior or designs to improve ...
Jul 24, 2023
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72
Engineering
(Tech Xplore)—Anticipate this: a car's motor magnet that does not have heavy rare earth elements. That is big, in that it marks a break from several constraints.
Engineering
Normally, when we think of a rolling object, we tend to imagine a torus (like a bicycle wheel) or a sphere (like a tennis ball) that will always follow a straight path when rolling. However, the world of mathematics and science ...
Sep 12, 2023
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105
Energy & Green Tech
A joint research team led by Professors Lee Hong-kyung, Lee Yong-min, and Lee Ho-chun of the Department of Energy Science and Engineering at Daegu Gyeongbuk Institute of Science and Technology (DGIST) has developed a new ...
Dec 15, 2022
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333
Engineering
Say you notice a sudden drop in temperature on both your patio and kitchen thermometers. At first, you think it's because of a cold snap, so you crank up the heat in your home. Then you realize that while the outside has ...
Feb 16, 2023
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45
In physics, magnetism is one of the forces in which materials and moving charged particles exert attractive, repulsive force or moments on other materials or charged particles. Some well-known materials that exhibit easily detectable magnetic properties (called magnets) are nickel, iron, cobalt, gadolinium and their alloys; however, all materials are influenced to greater or lesser degree by the presence of a magnetic field. Substances that are negligibly affected by magnetic fields are known as non-magnetic substances. They include copper, aluminium, water, and gases.
Magnetism also has other definitions and descriptions in physics, particularly as one of the two components of electromagnetic waves such as light.
This text uses material from Wikipedia, licensed under CC BY-SA
