The Truth About Pumped Hydro This video was created in partnership with Bill Gates, inspired by his new book “How to Avoid a Climate Disaster.” Facebook Prev Article Next Article Engineering Checkout these cool gadgets... Related Posts 1773 Mechanical Devices Were Amazing Here’s Why This Super Lightweight Concrete Slab Is The Future Of Architecture HydroBee – Your Personal Hydroelectric Generator Moving a 6200 Ton Building by 60meters Black pearl Launch of a modern sailing ship Road signs suck. What if we got rid of them all?