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Samsung Galaxy S III (T-Mobile)


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This phone has a Barometer ?


Jun 15, 2012, 2:54 PM
Wow. I bet if you search through the menu, you'll find a kitchen sink too.

What the hell does a phone need to use a barometer for? Is my phone going to predict the incoming weather patterns or something ?
Rich Brome

Jun 15, 2012, 3:43 PM
It measures altitude, which makes location readings more accurate.

If you have a handful of inputs from GPS and Wi-Fi networks, each GPS satellite and Wi-Fi access point is one distance reading, in a three-dimensional space. You need at least three inputs to triangulate your location on land, but you need more more when dealing with three dimensional space, and each additional input makes the reading more accurate. Therefore an input on the height axis helps make the whole calculation more accurate.

Knowing height can also help indoor navigation, which Google now does; are you on floor 2 or 20? etc.

Jun 15, 2012, 4:42 PM
Wow, thanks for the answer Rich. I totally forgot that atmospheric pressure readings can be used to determine altitude. Thanks for the info.

Jun 19, 2012, 10:52 PM
This makes it easier for the NSA to find you...

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