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  #1361  
Old Posted Nov 24, 2020, 1:31 PM
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Has Joby Cracked The Power Problem To Make Electric Air Taxis Work?

Has Joby Cracked The Power Problem To Make Electric Air Taxis Work?

Jeremy Bogaisky
Forbes
11/23/2020


Joby Aviation founder JoeBen Bevirt (right) stands with Executive Chairman Paul Sciarra, a key early investor and architect of the company's commercial strategy, in front of a prototype of their electric tiltrotor aircraft. (Image courtesy of Forbes)

"As a college freshman in 1992 interested in building aircraft capable of taking off and landing vertically, JoeBen Bevirt landed in the right place: the lab of flying car pioneer Paul Moller at the University of California at Davis.

But despite deep respect for Moller, Bevirt soon concluded that it wasn’t going to work. The rotary gas-powered engines Moller was developing for his Skycar were intolerably loud and research Bevirt did on batteries led him to believe it would be decades before they would contain enough energy at a low-enough weight to make a quieter electric vertical takeoff and landing (VTOL) aircraft possible. He turned to robotics instead."

https://www.forbes.com/sites/jeremyb...h=3ab381076a73
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  #1362  
Old Posted Yesterday, 3:39 PM
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UAE's first national rail network 'has the potential to transform the economy'

https://www.cnn.com/travel/article/e...ntl/index.html

Quote:
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- In the Hajar Mountains between Dubai and Fujairah, engineers are blasting out a new frontier for the United Arab Emirates. Ton by ton, rock is making way for 16 kilometers of tunnel, which will one day see trains barreling through it on a journey from coast to coast, and potentially further afield. — A nation known for its love of cars, as well as its strategic ports and airports, the UAE is betting big on its first national rail network. The 1,200-kilometer (746-mile) artery will connect the Gulf of Oman to the Persian Gulf, down through the emirates, into Abu Dhabi's interior and to Ghuweifat on the border of Saudi Arabia, a key step in a long-mooted rail network crossing the Arabian peninsula.

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Last edited by M II A II R II K; Yesterday at 5:41 PM.
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