OVERVIEW:
Flash2Bang is an iPhone app used to calculate distance based on an observed event and the following sound associated with that event. Since the speed of sound is affected by air temperature, it includes a temperature control that can also serve as a Fahrenheit/Celsius converter.
HOW TO USE:
Application Startup
When Flash2Bang starts up, the temperature is set to a default of 70 F. You can adjust the temperature by adjusting the slider left or right as necessary. You can also change the temperature scale by pressing “F” or “C”. The “Reset Temp” button sets the temperature back to 70 F (of 21 C if using the Celsius scale).
To start timing an event, simply click on the “Start” button.
Timing of the Event
While an event is being timed, the interval will update every 1/10th of a second. While the timer is active, you can still adjust the temperature to the desired setting if necessary. As soon as you hear the event, click on the “Stop” button.
Results
When the “Stop” button is pressed, Flash2Bang will calculate the distance based on the time interval and factoring in the temperature value.
The “Convert” button is used to cycle between the following distance scales: Meters, Kilometers, Yards, and Miles.
Once the interval has been calculated, you can still adjust the temperature as necessary, and the calculated distance will be automatically adjusted.
Click on the “Clear” button to erase the results of the previous observation.
To start another observation cycle, simply press the “Start” button.