Entrepreneur Elon Musk re-introduces the hyperloop concept through release of alpha document.
Global transportation concept using passenger capsules in frictionless maglev full-vacuum tubes
Vacuum trains were first described by American rocket pioneer Robert Goddard in 1904 and then by a first model was built by the Russian professor Boris Weinberg in 1909.
In 1867 at the American Institute Fair in New York, Alfred Ely Beach demonstrated a 100-foot (30 m) long, 6-foot (1.8 m) diameter pipe that was capable of moving 12 passengers plus a conductor. Then in 1869, the Beach Pneumatic Transit Company of New York secretly constructed a 312-foot (95 m) long, 8.9-foot (2.7 m) diameter pneumatic subway line under Broadway, to demonstrate the possibilities of the new transport mode.