Hydrogen-powered drones have several advantages to lithium ion-powered ones, says Dr Enass Abo-Hamed.
from BBC News - Business https://ift.tt/2Qyv76b
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By Eve Peyser from NYT Style https://ift.tt/YcSv0z5
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The building equipment rental firm joins others who have moved to the US from London. from BBC News https://ift.tt/zuL7x2Y
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