Features:
- The intuitive interface.
- Oversized numbers for easy data entry.
- This software can be used as a timer.

How Lightning Distance Calculator works:
Click the Navigation button when you see the lightning, then click it again when you hear the thunder.
The calculator provides time interval between the lightning and the thunder and the distance to the lightning.

The Lightning Distance Calculator is completely FREE.

*** [Mar 1, 2006] by Dick Tso using Pocket Pc WM2003
The program is fun. If there is a calibration(take the tests serveral times and take the average)for checking individual's speed of response, the result would be theoretically more accurate!