Multirotor drones truly took off with the availability of lithium polymer batteries, brushless motors, and cheap IMUs. Their performance continues to improve, but their flight time remains relatively short due to the limits of battery technology. [Nicolai Valenti] aims to solve the problem by developing a hybrid generator for drones.
The basic concept consists of a small gasoline engine, connected to a brushless motor employed as a generator. The electricity generated is used to run the main flight motors of the multirotor drone. The high energy density of gasoline helps to offset the added weight of the generator set, and [Nicolai]

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It’s time to start celebrating. Not only is it Friday and the end of the working week, but we have also tracked down a bunch of great deals, just for you.
To help you get in the mood for the weekend, we have lined up deals on kitchenware and appliances, smart home devices, and more. You can pick up great discounts on brands like Tefal, Bosch, Le Creuset, Eufy, and other big names. It’s all here

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U.S. Navy shoots down Iranian drone in Strait of Hormuz  Washington TimesIran seizes foreign oil tanker in Persian Gulf, 12 on vessel, state media reports  USA TODAYUS ‘immediately destroyed’ Iranian drone  Reuters UKView full coverage on Google News

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Trump says US shot down Iranian drone | TheHill  The HillPresident Trump on Thursday said a U.S. Navy vessel shot down an Iranian drone in a “defensive action” in the Strait of Hormuz

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BBC Click’s Paul Carter looks at some of the week’s best technology news stories.

View original article at BBC World News