however, is one of the most complÂex challenges in the field of civil engineering. Many tunnels are considered technological masterpieces and governments have honored tunnel engineers as heroes. That's not to say, of course, that some tunnel projects haven't encountered major...
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The Clifton Mill, an Ohio grist mill that dates back to the 1800s, gets a Christmassy makeover every winter when more than 4 million lights go up on the covered bridge. The display takes six workers about three months to build every year, and visitors can take in the stunning light sho...
Be sure to switch sides, with your legs under your body to the right and your left arm extending over your head. 3 Strengthen your back with a bridge stretch. Lie down on your back with your knees and arms spread shoulder-width apart and push your hips up toward the ceiling. Bend your...