![](http://1.bp.blogspot.com/-yEcSJqegc3M/T7SHWuYeILI/AAAAAAAALpg/HWfn7BLu5Xc/s200/device-2012-05-16-115941.png)
For everyone else, Physics Gizmo will no longer close if you choose not to turn on Bluetooth. This is a bug I have wanted to resolve for a while, and I appreciate your patience.
Bluetooth is necessary to connect two phones as a photogate (video), but if you don't turn on Bluetooth the other sensors work just fine.
Thanks to everyone who uses and tells others about Physics Gizmo. Please let me know your comments, feedback, and requests and I would appreciate it if you leave positive feedback/rating in Google Play.
See the original Physics Gizmo post for more background and information about the app.
Subscribe to Brokenairplane to see how Education is shifting and educators are innovating!