I'll be teaching an AP Physics class in a few weeks. Usually labs are equiped with lots of desktop computers, to which I can add stuff like motion detectors: devices that can input velocities into the computer. But my lab doesn't have computers. Rather, each student has an iPad. This might be an easy Google question, but I've come up blank so far. Is there ANY type of Physics devices that can connect to an iPad? Can anything other than an iPad charger connect to an iPad? Sorry, but I've been a Windows person all my life, and iPads have suddenly appeared in my life! We have lots of cool Venier equipment that is pre-USB. Is there any way to make use of this stuff in a classroom with no computers and 1 iPad per student? Any other iPad advice would be welcome too!