What makes a stylus work?

Related questions

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5. How much does Sketchbox cost?
6. Is there a sketch App for iPad?
7. How big should a sketchbook be?
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Tags

1. #sensitive
2. #touch
3. #capacitance
4. #finger
5. #where
6. #rubber
7. #screen
8. #replace
9. #stylus
10. #standard
11. #small
12. #persons
13. #conductive
14. #every
15. #change
16. #capacitive