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Water Level Sensor
Water-proofing a Servo
DIY Fuel Ionizer for real cheap. Really works.
ionization chamber made of aluminum can
Refilling SLA's (Sealed Lead Acid battery), Like Refilling a Car Battery
How to Read a Simple Mass Spectrum
$5 Static Electricity Generator
Build a Pocket Ionizing Radiation Detector (PIRD)
Renew your Sealed Lead Acid (SLA) battery with Distilled Water!
Posted:Jul 30, 2011
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