Chang Soo Kim
WonderHowTo
Gadget Hacks
Next Reality
Null Byte
Gadget Hacks
Next Reality
Food Hacks
Null Byte
The Secret Yumiverse
MacGyverisms
Invisiverse
Mind Hacks
Mad Science
Lock Picking
Driverless
About Chang Soo Kim
Family Physician, certified in U.S., Urology board certified in Korea.
Location: Alpharetta, Georgia
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