Robotics
Researchers have harnessed the latest nanofabrication techniques to create bug-shaped robots that are wirelessly powered, able to walk, able to survive harsh environments and tiny enough to be injected through an ordinary ...
Mar 7, 2019
0
285
Robotics
Researchers at North Carolina State University have created 3-D-printed flexible mesh structures that can be controlled with applied magnetic fields while floating on water. The structures can grab small objects and carry ...
Jan 23, 2019
1
108
Machine learning & AI
A team of researchers at Imperial College London and UCL have recently developed a new method to authenticate honey using machine learning and microscopy. Their technique, outlined in a paper pre-published on arXiv, could ...
Engineering
University of Arizona biomedical engineering professor Philipp Gutruf is first author on the paper Fully implantable, optoelectronic systems for battery-free, multimodal operation in neuroscience research, published in Nature ...
Jan 2, 2019
1
1538
Engineering
A team of researchers have developed an entirely new class of metamaterials that can nearly instantly respond and stiffen 3-D printed structures when exposed to a magnetic field, a development that could be applied to next-generation ...
Dec 12, 2018
0
18
Engineering
While birds naturally perceive the Earth's magnetic field and use it for orientation, humans do not share this ability—at least, until now. Researchers at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) in Germany have ...
Nov 16, 2018
0
132
Engineering
In a new study that one scientist called jaw-dropping, a joint UCLA/Caltech team has shown that it is possible to obtain the structures of small molecules, such as certain hormones and medications, in as little as 30 minutes. ...
Nov 12, 2018
0
1
Engineering
Researchers commonly study brain function by monitoring two types of electromagnetism—electric fields and light. However, most methods for measuring these phenomena in the brain are very invasive.
Oct 22, 2018
0
133
Computer Sciences
A combined team of researchers from the University of Washington and Carnegie Mellon University has developed what they call BrainNet —a system that allows three people to communicate with one another using only brain waves. ...
Robotics
A team of researchers working at the Chinese Academy of Sciences has developed an electronic skin that is sensitive enough to detect changes in air moving, falling drops and moving ants. In their paper published in the journal ...
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
