APEX, Nev. — The most striking aspect of the testing facility for the potentially revolutionary, multibillion dollar Virgin Hyperloop One in the Mojave Desert is that it is made up of a series of Big Top Fabric Structures, a super-size version of a backyard party tent. But the 40-acre site 29 miles outside of Las Vegas has everything engineers need to test the high-speed pod that runs inside a low-pressure tube: a 500-meter test track, which is about 1,600 feet; ... READ MORE >