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Meteorologists may become better at their jobs thanks to your smartphone.
Atmospheric scientists at the University of Washington are collecting data from people using PressureNet, a free app that works on certain Android devices.
You might want to watch the video below before you check in, update your status, or snap and share that photo of you at lunch with your smartphone.
The Guardian got hold of this 2010 video demonstration from Raytheon, a big-time contractor that also develops things like missile systems for the Department of Defense, which shows an online tracking tool called Rapid Information Overlay Technology, or RIOT.