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Technology Stocks : Apple Inc. -- Ignore unavailable to you. Want to Upgrade?

To: manalagi who wrote (137106)	7/5/2012 2:50:32 PM
From: jeftuxedo	Read Replies (2) \| Respond to of 213172

I do not really know for certain, but a good guess is that the touch keyboard is heat sensitive. Your eraser does not emit heat so it doesn't work. Just an educated guess though.

To: manalagi who wrote (137106)	7/5/2012 3:43:59 PM
From: Win-Lose-Draw	Respond to of 213172

The screen relies on certain electrical properties to detect touches. Tape some aluminum foil to the eraser end, and give it a (careful) go.

To: manalagi who wrote (137106)	7/5/2012 6:05:10 PM
From: Cogito	6 Recommendations Read Replies (2) \| Respond to of 213172

The iPhone has a touch screen feature. How come I cannot use the erase of my pencil to press the virtual button? The short answer is that the touch screen on an iPhone doesn't sense pressure, it senses changes in an electrical field. Your non-conducting pencil eraser doesn't make any changes to the field. Here's a longer, more complete answer. electronics.howstuffworks.com