Garmin nüvi 855 4.3-Inch Widescreen Portable GPS Navigator with Speech Recognition

• Sleek, ultra-slim design fits in a pocket; High-sensitivity GPS receiver for fast satellite lock
• Pre-loaded with City Navigtor NT maps for North America, including more than 6-million name-searchable points of interest
• Speech recognition–speak menu options and keep your eyes on the road
• Multi-destination routing–enter several destinations and get the best route to all of them; “Where am I?” and “Where’s my car?” features
• Full feature set–text to speech for spoken directions with real street names; MP3 player, and Photo viewer

Garmin International’s nüvi 855 is a GPS navigator and personal travel assistant featuring voice-activated navigation and lane assist with junction view. Navigate with confidence while nüvi directs you to the preferred lane while driving. Also, see realistic images of upcoming junctions where available. Lane assist guides you to the correct lane for an approaching turn or exit, making unfamiliar intersections and exits easy to navigate. Click to enlarge
Junction View gives you a photo-realistic screen that shows you both the road detail as well as the signs as you will see them on the road. Click to enlarge This advanced model feature voice-activated navigation and lane assist with junction view. Click to enla

Rating: (out of 322 reviews)

List Price: $ 349.99

Price: $ 137.47

Garmin nüvi 780 4.3-Inch Widescreen Bluetooth Portable GPS Navigator with MSN Direct Service

• GPS navigator preloaded with City Navigator North America NT
• 4.3-inch diagonal touchscreen display with 2D/3D mapping perspective
• Turn-by-turn directions with Voice Guidance/Text-to-Speech feature
• Includes MSN Direct receiver with Version 2
• Weighs just 1.8 pounds and measure 0.8 x 4.8 x 2.8 inches (W x L x H)

The nüvi 780 adds enhanced MSN direct content to the multi-destination routing and “Where Am I?” features and gorgeous widescreen display of other nüvi 700s to create a superior navigation device for business as well as casual drivers. As with all nüvis, you get Garmin reliability, the fast satellite lock of an integrated high-sensitivity receiver, a slim, pocket-sized design with a gorgeous display, an easy, intuitive interface, and detailed NAVTEQ maps for the United States, Canada and Puerto Rico with more than 6 million name-searchable points of interest. All of the 700-series navigators also feature a rich array of features including spoken directions in real street names, integrated traffic receivers, MP3 player and photo viewer, a

Rating: (out of 476 reviews)

List Price: $ 699.99

Price: $ 335.23

Question by zuestra99: How does a GPS system use Lorentz transformations for its functionality?
From what I understand, Lorentz transformations can determine the dilation of time with relative speed. (Of course I could be wrong). How does the GPS use this to function?

Best answer:

Answer by Don
It is added into the backside algorithm to establish functional direction.

What do you think? Answer below!