David Caldwell
WonderHowTo
Gadget Hacks
Next Reality
Null Byte
Gadget Hacks
Next Reality
Food Hacks
Null Byte
The Secret Yumiverse
MacGyverisms
Invisiverse
Lock Picking
Mind Hacks
Mad Science
Driverless
About David Caldwell
May 2014 be full of Joy and happiness
Location: Richmond, Texas
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