Elon Musk detailed a new type of train service in a low-pressure tube that would reach speeds up to 760 mph. Virgin Hyperloop is among the companies attempting to develop hyperloop technology, which they say will improve on existing trains. This pneumatic tube center at the New York office of Merrill Lynch, Pierce, Fenner & Beane is shown in a 1955 photo. Pneumatic tubes were popularized in the 1800s, scholars say, as an alternative to ground transportation. So pneumatic tubes were often used between telegraph offices and key destinations such as stock exchanges, the scholars say.

Source: CNN November 20, 2020 15:22 UTC