First A380 passenger flight

Ready for takeoff

The world's largest passenger aircraft is ready to start flight trials.

Five aircraft will fly about 2,850 hours during the trials, which will last until spring 2006.

In addition, two aircraft which will never fly are subjected to fatigue and static structural testing, which involves their 80-metre (262 feet) wingspan being bent and the body subjected to repeated exposure to the elements, simulating thousands of flights.




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Were the Pyramids Made With Concrete?

" Concrete one was spilled to construct great pyramids approximately 5,000 years ago, according to the controversial investigation, that suggests the old Egyptans predated the Romans by thousands of years as the inventors of the concrete one. Michel Barsoum, professor of materials who directs in the university of Drexel in Philadelphia, and colleagues disclose in the present application the newspaper of the society of American ceramics that the pyramids were constructed with a combination of stones and blocks carved of the concrete one stone-based. "

Found via | Were the Pyramids Made With Concrete? | Pictures of Pyramid | Pyramid Info


tag: building, world's, wonder, engineering,

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This bridge is half under the water

This bridge is half under the water, for ships to pass and then again, it comes out on the other side.

Truly a marvelous piece of engineering!

This bridge is between Sweden and Denmark

tag: bridge, Road, sea, engineering

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