Поделки! Ingenious DIY Hydroelectric Turbine Systems | Free Energy

Dams have been around for millions of years, helping humanity control the resources around us. Now they are masterpieces of engineering, with the biggest structure on earth being a dam. But doing something mini has the same merit as doing it at a large scale. And here we bring you three examples. Watch this review of three amazing mini dams and tell us what you think. Enjoy! Youtube: Email: @ Disclaimer: Quantum Tech HD is not affiliated with the businesses whose products are shown in this review. Any trademarks depicted are the property of their respective owners.