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  2. List of free and open-source Android applications - Wikipedia

    en.wikipedia.org/wiki/List_of_free_and_open...

    Android phones, like this Nexus S running Replicant, allow installation of apps from the Play Store, F-Droid store or directly via APK files.. This is a list of notable applications (apps) that run on the Android platform which meet guidelines for free software and open-source software.

  3. Mobile phone based sensing software - Wikipedia

    en.wikipedia.org/wiki/Mobile_phone_based_sensing...

    Rates of battery drainage are affected by which sensors are activated. The EARS Android app drains around 0.38% of the battery of a Samsung Galaxy 7 every hour of collection on all sensors. On newer devices or devices with fewer sensors, a smaller percentage is drained every hour. Battery drain depends entirely on data collection settings Empath

  4. List of weather instruments - Wikipedia

    en.wikipedia.org/wiki/List_of_weather_instruments

    Weather stations typically have these following instruments: . Thermometer for measuring air and sea surface temperature; Barometer for measuring atmospheric pressure; Hygrometer for measuring humidity

  5. Mobile technology - Wikipedia

    en.wikipedia.org/wiki/Mobile_technology

    Android, a mobile OS developed by Google, is the first completely open-source mobile OS, meaning that it is free to any cell phone mobile network. Since 2008 customizable OSs allow the user to download apps like games, GPS, utilities, and other tools. Users can also create their own apps and publish them, e.g. to Apple's App Store.

  6. Meteorological instrumentation - Wikipedia

    en.wikipedia.org/wiki/Meteorological_instrumentation

    The 17th century saw the development of the barometer and the Galileo thermometer while the 18th century saw the development of the thermometer with the Fahrenheit and Celsius scales. The 20th century developed new remote sensing tools, such as weather radars, weather satellites and wind profilers, which provide better sampling both regionally ...

  7. Pressure altimeter - Wikipedia

    en.wikipedia.org/wiki/Pressure_altimeter

    In aircraft, an aneroid altimeter or aneroid barometer measures the atmospheric pressure from a static port outside the aircraft. Air pressure decreases with an increase of altitude—approximately 100 hectopascals per 800 meters or one inch of mercury per 1000 feet or 1 hectopascals per 30 feet near sea level .

  8. GPS tracking unit - Wikipedia

    en.wikipedia.org/wiki/GPS_tracking_unit

    GPS tracking may also be ordered for persons subject to a restraining order. [6] [7] Espionage/surveillance: a tracker on a person or vehicle allows movements to be tracked. Vehicle tracking: some people use GPS Trackers to monitor activity of their own vehicle, especially in the event of a vehicle being used by a friend or family member.

  9. Android (operating system) - Wikipedia

    en.wikipedia.org/wiki/Android_(operating_system)

    Android home screens are typically made up of app icons and widgets; app icons launch the associated app, whereas widgets display live, auto-updating content, such as a weather forecast, the user's email inbox, or a news ticker directly on the home screen. [91]