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By Date

introducing powerdercoins

tonimark 3 comments

water from hydrogen and oxygen

tonimark 8 comments

try to break2 challenge

tonimark 1 comments

simple microwave V2.0

tonimark 1 comments

glow lamp

tonimark 3 comments

adjustable temperature sensor

tonimark 6 comments

rotary engine

tonimark 1 comments

hot-bulb diesel engine 1c

tonimark 0 comments

hot-bulb diesel engine 4c

tonimark 2 comments

ovens v1.5

tonimark 2 comments

radiators

tonimark 1 comments

propane gas stove

tonimark 0 comments