Videos
Podcasts
Blogs
Quizzes
Games
You Asked:
Why do iPod Touchs’ only recognize fingers, not pens or other objects? — Drew, Knoxville, Tennessee
Marshall Answered:
An iPod’s touch screen is capacitive, in the same way that a touch sensitive lamp is capacitive. Your body is a large, wet object that can hold (relatively speaking) a lot of electrical charge. When you touch the screen, the computer senses that capacity of your body to absorb charge. Other objects (like a piece of plastic) don’t have this property, but a piece of fruit sometimes works. For details see: How the Touch Works
Comment Now