Ever since the late 19th century, physicists have known about a counterintuitive property of some electric circuits called negative resistance. Typically, increasing the voltage in a circuit causes the electric current to ...
The ability to hide an arbitrary object with a cloak at a distance from the object is a unique task in photonics research, although the phenomenon is yet to be realized in practice. In a recent study now published in Light: ...
(Phys.org) —While scientists know that information is represented in the brain by the electrical activity of neurons, the details of this representation, called "neural coding," remain mysterious. How exactly do pulses ...
As humans, we live in our thoughts: from pondering what to make for dinner to daydreaming about our last beach vacation. Now, researchers at HHMI's Janelia Research Campus have found that animals also possess an imagination.
Plants & Animals
Nov 2, 2023
2
2864
Quincke rotation is defined as the spontaneous steady rotation of a dielectric particle immersed in a dielectric solvent under a steady and uniform electric field. Electro-hydrodynamically driven active particles based on ...
A trio of biologists, two with the University of Fribourg, in Switzerland, the third with Universitat de Barcelona, in Spain, has found that a type of Cnidaria is capable of associative learning. Gaelle Botton-Amiot, Simon ...
Engineers at the University of California San Diego have developed a powerful new tool that monitors the electrical activity inside heart cells, using tiny "pop-up" sensors that poke into cells without damaging them. The ...
Bio & Medicine
Dec 23, 2021
0
306
Watching a mother mouse gather her pups into the family's nest trains other female mice without pups to perform the same parenting task, a new study shows. Furthermore, these observations lead to the production of oxytocin ...
Plants & Animals
Aug 11, 2021
0
2214
Bay Area scientists have captured the real-time electrical activity of a beating heart, using a sheet of graphene to record an optical image—almost like a video camera—of the faint electric fields generated by the rhythmic ...
Bio & Medicine
Jun 16, 2021
0
1030
One of the deep problems in understanding the brain is to understand how relatively simple computing units (the neurons), collectively perform extremely complex operations (thinking).
General Physics
Jun 22, 2015
10
1594
Electrical phenomena are commonplace and unusual events that can be observed which illuminate the principles of the physics of electricity and are explained by them. Electrical phenomena are a somewhat arbitrary division of electromagnetic phenomena.
Some examples are
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