Surprise! Air Force Secretly Builds, Flies New Fighter Jet

And it all happened in just one year. Yes, that's mind-blowing. If you have trouble reading this message, view it in a browser.       The Air Force Secretly Designed, Built, and Flew a Brand-New Fighter Jet   And it all happened in just one year. Yes, that's mind-blowing. Read More           Watch Terrifying Footage of a Chaotic Fire Tornado in California   Just when you thought this year couldn't get any crazier. Read More             The 11 Headlamps Worth Your Hard-Earned Buck   Whether you're in the backcountry or simply under the kitchen sink, there's a light for everything. Read More           The Navy May Use Robo-Ships to Hunt and Kill Enemy Subs, Terminator-Style   Might as well put that new unmanned fleet to work. Read More           Pop Mech's Puzzle of the Week   Jumpstart your brain for the week ahead with this devilishly difficult puzzle. Read More           The Big Burn: Idaho and Montana, August 1910   This story is exclusive to Pop Mech Pro members.   A rainless summer, bizarre winds and sudden lightning merged hundreds of fires into a great inferno, leaving firefighters to fend off the Big Blowup with buckets of water and their bare hands. By the time the second of our 10 Worst Disasters of the Last 101 Years was put out, the wildfires had claimed 85 lives, but also sparked a debate over forest fires that burns to this day. For expert survival advice and tips, visit our ultimate guide to getting ready for any disaster. Read More         Read More on PopularMechanics.com       Follow Us     Unsubscribe  Privacy Notice   PopularMechanics.com ©2020 Hearst Communications Inc. All Rights Reserved. Hearst Email Privacy, 300 W 57th St., Fl. 19 (sta 1-1), New York, NY 10019