How the Pentagon’s $200 billion DARPA-funded Radial Tunnel Syndrome (RTS) Test Changed the Game

DARPA is a secretive federal agency that helps the US military develop new technology.But just as important as its role is the fact that DARPA and other US military agencies have been using the same technology to develop new technologies for decades, including radial tunneling (RT) systems that can be used to carry out covert […]

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How to build your very own ‘tunnel’ bear kit

High-speed trains are becoming more popular, with people increasingly choosing to take a shortcut through congested urban areas, even if the ride is less comfortable.We’ve rounded up some of the best options out there for making the trip, even without a high-speed rail connection.

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