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A Startup Built a Small Drone for the U.S. Military That Takes Off From the Water, Lands Itself in Two-Foot Seas, and Slips Under Radar — Basically a Stealth Delivery Van for Contested Waters
China Says It Strapped a Nuclear Reactor to the Back of a Truck That Can Run for Decades on a Single Load of Fuel — and It’s Aimed at the Data Centers Eating the World’s Power
Battery Drones Drop Out of the Sky After 30 Minutes. A Hydrogen One Can Watch a Border, a Coastline or a Pipeline for Most of a Day — and Investors Just Valued One Maker at a Billion Dollars
A Hydrogen Train Drove 1,742 Miles on One Tank in the Desert, Then Went to Work Hauling Commuters Nine Miles and Back. Both Numbers Tell You Exactly Where Hydrogen Rail Stands