Barrier

NextGen Supersonic Jets To Get Rid Of Boom

True to its aeronautic roots, NASA is evaluating a new generation of supersonic airplane designs to see whether they can reduce sonic-boom levels. Boeing and Lockheed Martin have submitted futuristic concepts that look similar to the Concorde, but aim to muffle the annoying and potentially damaging sonic boom problem. Airplanes flying faster than sound create

7 Non-famous Engineering Wonders of the Modern World

Would you believe that the tallest bridge in France reaches higher than the Eiffel tower, or that a single dam in China can hold back 1.4 trillion cubic feet or water? Each of the projects depicted here has set at least one world record for its height, scale, daring or ingenuity. From Venice to Boston,