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Friday 26th August 2016
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How do iPhone touchscreens work?


How does the touchscreen on my iPhone work? It works even with a plastic cover over it.
James, Poole


** Definitive **
Name: Sat, Dartford
Qualification: Heard it on TV
Answer: The human body creates and electrical impulse. There is a circuit just under the screen and when you touch it, it completes that current and works. That's why you can't get touchscreens to work when you're wearing gloves.

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