A century ago, futurists predicted that pneumatic tubes would be the transportation ... The screen displays a tiny icon that reflects the container’s travel through various switches and ...

Source: The Atlantic By the end of the 19th century, most major cities used pneumatic tube systems to transport mail and other messages. Some still exist today at banks, hospitals, and factories.

In the late 1890s, networks of pneumatic tube systems were installed under city streets to move the mail. Each pneumatic tube canister could hold up to 500 letters. The canisters, also known as ...

Before the Hyperloop, before email, even before mail trucks, there was pneumatic mail: an underground network of pressurized air tubes that shot cylinders full of letters around a city.

The device employs a technology that was supposed to have faded away decades ago – pneumatic tubes. Hidden in the walls is a vast computer-controlled network of pipes propelling capsules via air ...