
www.pickatrail.com

Nature & Science News

UK climate unit's e-mails hacked - The e-mail system of one of the world's leading climate research units has been breached by hackers.

Mammoth dung clue to extinction - A study of mammoth dung is helping unravel the mystery of what caused the great mammals to die out.

New skin 'may help burns victims' - French researchers say they have found a way of using human embryonic stem cells to create new skin which could help serious burns victims.

First test for record solar plane - The prototype of a solar-powered plane destined for a record round-the-world journey makes its first trip across a runway.

Spacewalk for shuttle astronauts - Two astronauts from the space shuttle Atlantis have embarked on the first spacewalk of their mission.

Skate may be fished to extinction - A species of skate could become the first marine fish driven to extinction by commercial fishing, say scientists.

Share|

GPS FAQ

What is the Global Positioning System?

The Global Positioning System (GPS) is a constellation of U.S. Government Satellites providing the most advanced and accurate positioning and navigation service in the world. Equipped with atomic clocks, twenty-four GPS satellites orbit 12,000 miles above the earth transmitting the exact time and their position in space.

What is a GPS receiver?

A GPS receiver is an electronic device that listens to satellite signals and uses the information to determine and display the receiver's location, speed, altitude and heading.

What is a GPS waypoint?

A GPS waypoint is a navigational fix on a point of reference. The GPS waypoint is oftentimes provided as a set of longitude and latitude coordinates in the "degree, minute, second" format.

What is a WGS 84?

WGS 84 is the acronym that represents the words, "World Geodetic Survey 1984". WGS 84 is one of the most widely accepted datums.

Index:
Placenames Around the World / U.S.A. / Britain