Tubes

Since Elon Musk (the mind behind Tesla Motors and SpaceX) quipped about a new “hyperloop” high speed transportation system last week, futurists and techies have been abuzz about a new mode of transportation that could eclipse air travel one day—cutting travel time between San Francisco and New York to just 45 minutes, or between New York and Beijing to just two hours.

One company called ET3 is apparently working on a plan for “Evacuated Tube Transport” which is loosely based on pneumatic systems once used in banks, offices or hospitals (for those old enough to remember) to transport documents within buildings using capsules inserted into suction tubes.

ET3 says that its tubular network could transport 6-passenger, automobile-sized capsules up to 4,000 mph in a frictionless environment inside tubes using magnetic levitation. The company claims that ET3 can be built for a tenth of the cost of high speed rail, or a quarter of the cost of a freeway, and provide 50x more transportation per kilowatt than electric cars or trains. Tubes could be built along US interstates, could travel across Alaska to reach China or even go underwater.