2,486
edits
Changes
Activities/Turtle Art/Using Turtle Art Sensors (view source)
Revision as of 20:20, 8 November 2010
, 20:20, 8 November 2010→Lemon battery
==Lemon battery==
==Lemon battery==
See http://en.wikipedia.org/wiki/Lemon_battery
See http://en.wikipedia.org/wiki/Lemon_battery
[[File:Lemon battery.jpg]]
With a copper wire and galvanised nail, the measured voltage is 0.93V, comfortably within the measurement range of the XO1 laptop. The laptop produced negligible loading on the open circuit voltage. With copper wire and an ungalvanised nail the voltage was 0.49V.
With a copper wire and galvanised nail, the measured voltage is 0.93V, comfortably within the measurement range of the XO1 laptop. The laptop produced negligible loading on the open circuit voltage. With copper wire and an ungalvanised nail the voltage was 0.49V.
Experiment with different materials and lemons in series.
==Links==
==Links==