Raimundo João Carvalho
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 Raimundo João Carvalho
Location: Rio de Janeiro, Rio de Janeiro
Sites
Invisiverse
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