Let's Remember the Largest Helicopter Ever, Which Was Completely Useless

This Soviet chopper was bigger than a 737 and an engineering marvel. What went wrong? If you have trouble reading this message, view it in a browser.       Let's Remember the Largest Helicopter Ever, Which Was Completely Useless   This Soviet chopper was bigger than a 737 and an engineering marvel. What went wrong? Read More           What If a Solar Flare Actually Sunk the Titanic?   That's what this new study suggests. Here's the evidence. Read More             Get Levi's #1 Best-Selling Pair of Jeans for $36 Right Now   Your favorite jeans brand has a bunch of other top styles on sale too. Read More           Hundreds of Thousands of Birds Are Suddenly Dropping Dead. No One Knows Why.   Wildfires? Heatwaves? Scientists are stumped—and scared. Read More           Why Airliners Could Soon Fly in Formation, Just Like a Flock of Birds   This makes too much sense not to try. Read More           How Great American Hard Cider Gets Made   This story is exclusive to Pop Mech Pro members.   Across America, artisans are reviving the libations that fortified our forefathers. 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