How long can you stay in the air by jumping?
Up, up and away!
With Jump Time you can see just how long you can really stay in the air. Jump app measures the longest duration that the phone is in free fall (i.e. – zero gravity). While this depends on the surface from which you are jumping (e.g. concrete versus something bouncy), it’s practically impossible to stay in the air for longer than a second when jumping in place. Even Michael Jordan’s famous dunk lasted only 0.92 seconds.
Lets see just how athletic you really are, and how do your friends compare? Just turn on the Jump Time application, place your iPhone in your pocket and jump!
Jump Time also displays your maximum vertical jump height. So, give it ago–your Guinness World Record awaits.
http://itunes.apple.com/gb/app/jump-time/id352279770?mt=8
Tender theory is proud to have published it’s first app, “Acceleration.”
Newtonian physics is fun!
Acceleration provides you with real-time information from the iPhone’s accelerometer. Isaac Newton would have loved this application!
This app also tells you the maximum recorded acceleration for each session, and enables you to reset the maximum force. Also, useful visual and numerical information regarding each of the axis’ acceleration is provided, as is a total force, which is the pythagorean sum of all three axes.
The app is available at http://itunes.apple.com/us/app/acceleration-meter/id350014760?mt=8
Note that the total acceleration is usually around 1 g, which is 9.8 meters per seconds squared [9.8 m/s^2]. However, this varies slightly in accordance with latitude, altitude, and local topography:
http://en.wikipedia.org/wiki/Earth%27s_gravity