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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." ...
CarBuzz

The 5.7 Hemi's Secret Problem That Could Cost You Thousands

Affected 5.7-liter Hemis suffer from poor lubrication at low RPMs. So, if you do a lot of idling in your truck, if you do a ...