Step Into This Tunnel And It'll Probably Be The Last Thing You Ever DoS

This is the supersonic wind tunnel located on Tennessee's Arnold Air Force Base. It is used to test "advanced hypersonic technologies such as wave-rider-type vehicles, scramjets and transatmospheric space planes." And it appears terrifying. Just look at the full-sized image.

Click on the image for a closer look.

To echo our pals at Jalopnik: I definitely wouldn't want to stand in that man's shoes when someone flips the "on" switch. [Arnold AFB via Jalopnik]

Photo Credit: U.S. Air Force photo/Lance Cheung