News tagged with electricity

Off the grid: Environmental novelty changes hippocampal firing patterns

(Medical Xpress)—The brain's two hippocampal formations – one in each hemisphere's temporal lobe, medial to the inferior horn of the lateral ventricle and typically referring to the dentate gyrus, the ...

Neuroscience created Nov 07, 2012 | popularity 5 / 5 (5) | comments 3 | with audio podcast feature

Memory vs. Math: Same brain areas show inverse responses to recall and arithmetic

(Medical Xpress)—Scientists have historically relied on neuroimaging – but not electrophysiological – data when studying the human default mode network (DMN), a group of brain regions with lower activi ...

Neuroscience created Sep 17, 2012 | popularity 4.8 / 5 (11) | comments 1 | with audio podcast feature

Melon focus headband turns to Kickstarter for rollout plans

(Medical Xpress)—What if the quality of your work depends more on your focus on the piano keys or canvas or laptop than your musical or painting or computing skills? If target users can be convinced, they ...

Neuroscience created May 17, 2013 | popularity 3.7 / 5 (3) | comments 0 | with audio podcast weblog

Rats' and bats' brains work differently on the move

A new study of brain rhythms in bats and rats challenges a widely used model - based on studies in rodents - of how animals navigate their environment. To get a clearer picture of the processes at work in ...

Neuroscience created Apr 18, 2013 | popularity 5 / 5 (1) | comments 2 | with audio podcast

Going places: Rat brain 'GPS' maps routes to rewards

While studying rats' ability to navigate familiar territory, Johns Hopkins scientists found that one particular brain structure uses remembered spatial information to imagine routes the rats then follow. ...

Neuroscience created Apr 17, 2013 | popularity not rated yet | comments 0 | with audio podcast

Study indicates reverse impulses clear useless information, prime brain for learning

(Medical Xpress)—When the mind is at rest, the electrical signals by which brain cells communicate appear to travel in reverse, wiping out unimportant information in the process, but sensitizing the cells ...

Neuroscience created Mar 19, 2013 | popularity 4.9 / 5 (9) | comments 2 | with audio podcast

Neural 'synchrony' may be key to understanding how the human brain perceives

Despite many remarkable discoveries in the field of neuroscience during the past several decades, researchers have not been able to fully crack the brain's "neural code." The neural code details how the brain's ...

Neuroscience created Mar 12, 2013 | popularity 5 / 5 (4) | comments 4 | with audio podcast

Using human brain cells to make mice smarter

Glial cells – a family of cells found in the human central nervous system and, until recently, considered mere "housekeepers" – now appear to be essential to the unique complexity of the human brain. Scientists reached ...

Medical research created Mar 07, 2013 | popularity 3.7 / 5 (3) | comments 2 | with audio podcast

One region, two functions: Brain cells' multitasking key to understanding overall brain function

A region of the brain known to play a key role in visual and spatial processing has a parallel function: sorting visual information into categories, according to a new study by researchers at the University ...

Neuroscience created Mar 06, 2013 | popularity 4.8 / 5 (4) | comments 1 | with audio podcast

Brain-to-brain interface allows transmission of tactile and motor information between rats

Researchers have electronically linked the brains of pairs of rats for the first time, enabling them to communicate directly to solve simple behavioral puzzles. A further test of this work successfully linked ...

Neuroscience created Feb 28, 2013 | popularity 4.8 / 5 (36) | comments 10 | with audio podcast

Scientists learn more about how inhibitory brain cells get excited

Scientists have found an early step in how the brain's inhibitory cells get excited.

Neuroscience created Jan 30, 2013 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Model for brain signaling flawed, new study finds

A new study out today in the journal Science turns two decades of understanding about how brain cells communicate on its head. The study demonstrates that the tripartite synapse – a model long accepted by the ...

Neuroscience created Jan 10, 2013 | popularity 4.5 / 5 (14) | comments 11 | with audio podcast

Researchers identify new target for common heart condition

Researchers have found new evidence that metabolic stress can increase the onset of atrial arrhythmias, such as atrial fibrillation (AF), a common heart condition that causes an irregular and often abnormally fast heart rate. ...

Cardiology created Jan 08, 2013 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Mind-controlled hand offers hope for the paralysed

Pentagon-backed scientists on Monday announced they had created a robot hand that was the most advanced brain-controlled prosthetic limb ever made.

Neuroscience created Dec 17, 2012 | popularity 5 / 5 (2) | comments 1

Ordinary heart cells become 'biological pacemakers' with injection of a single gene

Cedars-Sinai Heart Institute researchers have reprogrammed ordinary heart cells to become exact replicas of highly specialized pacemaker cells by injecting a single gene (Tbx18)–a major step forward in the decade-long search ...

Medical research created Dec 16, 2012 | popularity 5 / 5 (5) | comments 1 | with audio podcast

Electricity

Electricity (from the New Latin ēlectricus, "amber-like"[a]) is a general term that encompasses a variety of phenomena resulting from the presence and flow of electric charge. These include many easily recognizable phenomena, such as lightning and static electricity, but in addition, less familiar concepts, such as the electromagnetic field and electromagnetic induction.

In general usage, the word 'electricity' is adequate to refer to a number of physical effects. However, in scientific usage, the term is vague, and these related, but distinct, concepts are better identified by more precise terms:

Electrical phenomena have been studied since antiquity, though advances in the science were not made until the seventeenth and eighteenth centuries. Practical applications for electricity however remained few, and it would not be until the late nineteenth century that engineers were able to put it to industrial and residential use. The rapid expansion in electrical technology at this time transformed industry and society. Electricity's extraordinary versatility as a source of energy means it can be put to an almost limitless set of applications which include transport, heating, lighting, communications, and computation. The backbone of modern industrial society is, and for the foreseeable future can be expected to remain, the use of electrical power.

For more information about Electricity, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.