【實用教育app】Thunder Stopwatch|最夯免費app

Thunder Stopwatch is a toy app that can be used to estimate the distance to a flash of lightning.

Features:

The app provides a simple stopwatch with large controls.

The app automatically estimates the distance sound may have traveled.

The app keeps a history of recent times and distances.

The app displays a plot of recent distances.

The app can be configured to display distances in English (mi) or Metric (km) units.

A help section explains the simple physics used to estimate the distance.

A help section provides a set of must know thunderstorm safety tips, plus links to publicly available safety fact sheets.

Source code available under GPLv3 (https://github.com/forrestguice/thunder-stopwatch).

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