Microwave-powered rocket propulsion investigated

Credit score: Montri Nipitvittaya/Shutterstock

Sending a rocket into area sometimes requires about 90% of the rocket’s preliminary weight to be gasoline. This limitation could possibly be overcome by wirelessly transmitting the wanted energy to the rocket by a beam of microwave radiation. A analysis crew from Japan has investigated the viability of utilizing such microwave-powered propulsion for real-world functions.

In a research printed this month within the Journal of Spacecraft and Rockets, researchers led by the College of Tsukuba have demonstrated wi-fi energy transmission by way of microwaves for a free-flying drone and decided the effectivity of this course of.

Earlier analyses of this type had been carried out a long time in the past and principally thought-about microwaves of a low frequency (a number of gigahertz; GHz). Provided that the facility transmission effectivity will increase because the working frequency is raised, the crew behind this newest analysis used microwaves with a comparatively excessive frequency (28 GHz). The crew’s drone weighed roughly 0.4 kilograms and hovered for 30 seconds at a peak of 0.8 meters above the supply of the microwave beam.

“We used a complicated beam-tracking system to make sure that the drone acquired as a lot of

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Android 12: Is your cellphone appropriate?

Current Google Pixel telephones just like the Pixel 5 will take pleasure in an replace to Android 12.


Juan Garzon/CNET

Android 12, Google’s newest model of its cell OS, is simply across the nook. With it comes one of many largest overhauls Android has seen in years. In reality, Google expects the software program to be the quickest, smoothest and flashiest model but.

So when are you able to formally get your palms on that Android 12 goodness? Proper now, it is within the late phases of beta growth. Though Google has not introduced an official launch date, we’re anticipating Android 12 to launch in both August or September based mostly on launch instances of earlier variations. 

The massive query is whether or not your cellphone will really obtain the huge replace. At launch, solely a choose few fashions will. And to qualify for an improve at a later date, every handset should meet the {hardware} necessities. So if you happen to’re wanting to take pleasure in Android 12 by yourself cellphone, you’ve got come to the appropriate place. This is all the pieces we learn about how that can possible play out.


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