Projects & Features
36 Flower Power
You too can power a device from a set of potted plants!
However, in this case, the cells of the battery draw their
energy directly from the plants, rather than from an
■ By Carlos Cossio
42 Build a Low Voltage Insulation Tester
Wire that we use on our projects is replaced when the
insulation starts to look bad. What about hidden wire
that had been installed in a large building more than
20 years ago? This easy modification allows a low tech
analog ohmmeter to detect insulation faults that a
high tech digital ohmmeter fails to find.
■ By Douglas Krantz
50 The Projects of Prototype This!
Joe Grand takes a closer look at the electronic aspects
of his different builds from the popular Discovery
Channel show Prototype This! This month, go deep with
a virtual sea adventure.
■ With Joe Grand
10 TechKnowledgey 2010
Events, Advances, and News
The return of the Nixie, molecular bot walks
and decides, IBM tweaks Microsoft, laser
generates bursts of nothing, plus other
stuff you’ll find interesting.
14 The Spin Zone
Adventures in Propeller Programming
The Joy of Joysticks.
24 Q & A
Reader Questions Answered Here
Hum detection, Video buffer, LCD backlight,
game clock, plus more.
55 Smiley’s Workshop
Programming • Hardware • Projects
AVR Memory Part 4: Writing to AVR Flash!
61 The Design Cycle
Advanced Techniques for Design Engineers
Gettin’ Jiggy with the Vinculum-II
68 Near Space
Approaching the Final Frontier
The Canon Hacker Development Kit.
28 NEW PRODUCTS
72 NV WEBSTORE
78 TECH FORUM
81 AD INDEX
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