Aurora Notifier
This app uses Google Cloud Messaging to inform you when it may be possible to see the Northern Lights (Aurora Borealis).If you are notified too often,...
beebeetle
Aurora Notifier+ add-on
This is an add-on package for AuroraNotifer. It provides location for AuroraNotifer so that it can tell you when it's dark outside among other thi...
RAD Calculator
Enter the temperature, the air pressure and the relative humidity and get the relative air density (RAD). This is a very basic calculator for this.免費玩...
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