Neuroscience

How the brain remembers where you're going

Researchers have made new discoveries about how certain brainwaves aid navigation. They hope that the methods may benefit patients suffering from neurodegenerative disorders one day.

Diseases, Conditions, Syndromes

When's the best time to get your flu shot?

When most of us get the flu, we spend three or four days on the couch feeling miserable, then we bounce back pretty quickly. But others have more severe symptoms and need to be hospitalised because they're at risk of life-threatening ...

Oncology & Cancer

'Sponge on a string' test to transform esophageal cancer diagnosis

A "sponge on a string" pill test can identify ten times more people with Barrett's esophagus than the usual GP route, according to a new study funded by Cancer Research UK and published in The Lancet today. The test, which ...

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Global Positioning System

The Global Positioning System (GPS) is a global navigation satellite system (GNSS) developed by the United States Department of Defense and managed by the United States Air Force 50th Space Wing. It is the only fully functional GNSS in the world, can be used freely by anyone, anywhere, and is often used by civilians for navigation purposes. It uses a constellation of between 24 and 32 medium Earth orbit satellites that transmit precise radiowave signals, which allow GPS receivers to determine their current location, the time, and their velocity. Its official name is NAVSTAR GPS. Although NAVSTAR is not an acronym, a few backronyms have been created for it.

Since it became fully operational on April 27, 1995, GPS has become a widely used aid to navigation worldwide, and a useful tool for map-making, land surveying, commerce, scientific uses, tracking and surveillance, and hobbies such as geocaching. Also, the precise time reference is used in many applications including the scientific study of earthquakes and as a required time synchronization method for cellular network protocols such as the IS-95 standard for CDMA.

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