How touchscreens work
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Ever wonder how you're able to awaken your phone with a simple swipe? Find out how the electrical impulses in your body interact with those in your smart phone or tablet to make this technology possible.
Explain why there needs to be a layer of air between the layers of conductive electrodes.
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TED-Ed Best of Web are exceptional, user-created lessons that are carefully selected by volunteer teachers and TED-Ed staff.
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- Video created by erinbrodwin
- Lesson Plan created by Rose Eveleth
