See also stories tagged with Magnetic resonance imaging
Bulk acoustic resonators—stacked material structures inside which acoustic waves resonate—can be used to amplify sounds or filter out undesired noise. These resonators have found wide use in today's RF telecommunication, ...
In recent years, many physicists and material scientists have been studying superconductors, materials that can conduct direct current electricity without energy loss when cooled under a particular temperature. These materials ...
According to theoretical predictions, axion dark matter could be converted into radio frequency electromagnetic radiation when it approaches the strong magnetic fields that surround neutron stars. This radio signature, which ...
At low enough temperatures, magnetic systems typically become solid crystals. A renowned phenomenon through which this happens is ferromagnetism, occurring when all elementary moments or spins interact at the atomic scale ...
High-temperature superconductors, materials that become superconducting at unusually high temperatures, are key components of a variety of technological tools, including MRI machines and particle accelerators. Recently, physicists ...
Some animals, such as birds, dolphins, and whales, can engage in unihemispheric sleep, in which one hemisphere of the brain sleeps while the other hemisphere remains awake. Staying half-awake allows animals to literally "keep ...
The electronic Barnett effect, first observed by Samuel Barnett in 1915, is the magnetization of an uncharged body as it is spun on its long axis. This is caused by a coupling between the angular momentum of the electronic ...
In life sciences, the ability to measure the distribution of biomolecules inside a cell in situ is an important investigative goal. Among a variety of techniques, scientists have used magnetic imaging (MI) based on the nitrogen ...
(Phys.org)—Similar to the way that a conventional magnetic resonance imaging (MRI) machine uses large magnets to generate 3D images, physicists have developed a proposal for a quantum nano-MRI machine that would use the ...
(Phys.org) —Fractals—patterns defined by their scale-invariance that makes them look the same on large scales as they do on small scales—are found in nature everywhere from snowflakes to broccoli to the beating of the ...
