HP PAT and HP LEET 2026 tentative exam dates released at hptechboard.com. HP PAT exam will be held on May 17, 2026 and HP ...
ZME Science on MSN
Ukraine Deploys World’s First Hydrogen-Powered Drone into Combat to Dodge Russian Thermal Sensors
Ukraine's new reconnaissance drone uses hydrogen fuel cells to fly 12 hours with a "negligible heat signature." ...
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