TheThunderTimer

$0.99

1.1for iPhone

Michael Matus

Developer

Oct 4, 2018

Update Date

Weather

Category

App Store

Age Rating

Apps in this category do not contain restricted content.

Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

TheThunderTimer Screenshots

iPhone

About TheThunderTimer

Imagine you notice a thunderstorm approaching. This app lets you estimate the distance between you and a thunderbolt. The use is very intuitive:

• When you notice a lightning, tap the button;
• As soon as you hear the thunder, tap again;
• Your distance to the lightning will be displayed, together with the expanded measurement uncertainty following the ± symbol;
• By tapping on this result you may open a map showing your location and the probable region of the lightning stroke.

Metrological background:
The distance is estimated by the elapsed time between lightning and thunder. The main uncertainty contributions are the variability of the acoustic velocity and physiological effects. The average difference in reaction time between visual versus acoustic stimuli are accounted for. The annular uncertainty region shown in the map is additionally increased by the positional accuracy of the observer.