Psychology & Psychiatry

The mere presence of your smartphone reduces brain power, study shows

Your cognitive capacity is significantly reduced when your smartphone is within reach—even if it's off. That's the takeaway finding from a new study from the McCombs School of Business at The University of Texas at Austin.

Diseases, Conditions, Syndromes

Ugandans invent 'smart jacket' to diagnose pneumonia

A team of Ugandan engineers has invented a "smart jacket" that diagnoses pneumonia faster than a doctor, offering hope against a disease which kills more children worldwide than any other.

Diseases, Conditions, Syndromes

As world cowers, China glimpses coronavirus aftermath

Restaurants are reopening, traffic and factories are stirring, and in one of the clearest signs yet that China is awakening from its coronavirus coma, the country's "dancing aunties" are once again gathering in parks and ...

Neuroscience

Our brain uses statistics to calculate confidence, make decisions

The directions, which came via cell phone, were a little garbled, but as you understood them: "Turn left at the 3rd light and go straight; the restaurant will be on your right side." Ten minutes ago you made the turn. Still ...

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Telephone

The telephone (from the Greek: τῆλε, tēle, "far" and φωνή, phōnē, "voice") is a telecommunications device that transmits and receives sound, most commonly the human voice. It is one of the most common household appliances in the developed world, and has long been considered indispensable to business, industry and government. The word "telephone" has been adapted to many languages and is widely recognized around the world.

The device operates principally by converting sound waves into electrical signals, and electrical signals into sound waves. Such signals when conveyed through telephone networks — and often converted to electronic and/or optical signals — enable nearly every telephone user to communicate with nearly every other worldwide. Graphic symbols used to designate telephone service or phone-related information in print, signage, and other media include ℡, ☎, ☏, and ✆.

This text uses material from Wikipedia, licensed under CC BY-SA