Monday, December 30, 2019

Hydrogen-powered drones could point way to future travel

Hydrogen-powered drones have several advantages to lithium ion-powered ones, says Dr Enass Abo-Hamed.

from BBC News - Technology https://ift.tt/2Qyv76b
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The Afghan War Ended With Zero M.I.A.s

After two decades of combat, there were no American troops missing in action, reflecting a major shift in military priorities. from NYT ...