Eoliana
27:20
Why Don’t Railroads Need Expansion Joints?
13:22
The Genius of Bionic Bladeless Propellers
11:36
The Genius of Cycloidal Propellers: Future of Flight?
26:27
Perché le Ferrovie Non Hanno Bisogno di Giunti di Espansione?
8:46
Boat Propellers are Overrated... The HydraJet Explained
23:02
Rare Old Engines Starting Up Sound That Will Blow Your Ears ▶5
22:16
Water pump without electricity that can pump water up to the hills
1:45:31