ahlam1399
07-20-2017, 10:29 PM
There's still much to do before getting formal approval, the entrepreneur adds. Hyperloop has the goal of reaching speeds of more than 700 mph, using magnetic levitation in a vacuum environment.
أكثر... (http://www.npr.org/sections/thetwo-way/2017/07/20/538328487/elon-musk-says-he-has-verbal-ok-to-build-n-y-d-c-hyperloop?utm_medium=RSS&utm_campaign=news)
أكثر... (http://www.npr.org/sections/thetwo-way/2017/07/20/538328487/elon-musk-says-he-has-verbal-ok-to-build-n-y-d-c-hyperloop?utm_medium=RSS&utm_campaign=news)