GERADOR A VAPOR CASEIRO, uma boa ideia para as velhas rodas de bicicleta
55:53
Making Graphene could KILL you... but we did it anyway?!
8:04
How to make a bicycle powered by compressed air
16:27
how to make an air powered engine
20:23
1890-1900 Atlas Automatic Steam Engine Part 5 Evaluation Begins
33:58
1930s Gearbox Bike - Restoration
15:09
TORNO caseiro mais simples de ser feito [ homemade lathe ]
8:02
traveling in a steam powered vehicle
29:11