You don’t have to be an Einstein to understand the relativity of time with the Hand in Hand Clock. The second hand rotates around the end of the minute hand, which in turn rotate ...
Fredy Paciello es Inventor y diseñador Industrial. Investiga en cinética, Patentes Internacionales, Generador Hidráulico y/ o Eólico Perfeccinados, Rueda Polyforme, Reutilizaci ...