Greetings to everyone Amazing invention from bicycle parts . amazing different inventions and master tips. tools , home ...

This video is sponsored by BetterHelp Here is a compilation of top 5 inventions and cool ideas! We want to share those ideas ...

Several years ago, retired military officer Guan Baihua invented what may be the ultimate geometry geek bicycle. The front wheel is a pentagonal curve, and the back wheel is a reuleaux triangle (a ...