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A 155-ton reactor in Italy running on molten lead, with electric heaters faking the uranium, is about to make real electricity with zero nuclear fuel inside, a full-size test of the metal before any fuel goes in
MIT built a load-bearing concrete arch that stores electricity and lights an LED, and the LED gets brighter as you stack more weight on it, a wall that tells you how much it’s carrying by how brightly it glows
China is testing underwater drones the size of submarines, 148 feet long with an estimated range of 10,000 miles, the largest ever built, and U.S. analysts say they could one day reach the West Coast
Belgium just built 23 concrete boxes the size of apartment buildings, floated them out to sea, and is sinking them in a ring to make solid ground where there’s nothing but open North Sea water