Hydrogen powered Toyota Mirai turned into bomb by Ukrainian forces explodes with the force of 400 pounds of TNT
29
votes
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Toroidal propellers: A noise-killing game changer in air and water
8 votes -
US to allow small drones to fly over people and at night
13 votes -
Heathrow Airport installs anti-drone system to detect threats
8 votes -
Departures at Heathrow were temporarily stopped after a drone was reported to have been sighted
13 votes