1. Pyramids of Egypt
The people of the area had viewed the Pyramid and its polished stones with awe for centuries. But when a 13th century earthquake loosened some of these casing stones, the Arabs recognized a great quarry of precut stones that could be used to finish off palaces and mosques. ... Modern technology cannot place such 20-ton stones with greater accuracy than those in the Pyramid. Even more amazing is that the 0.02-inch gap was designed to allow space for glue to seal and hold the stones together. A white cement that connected the casing stones and made them watertight is still intact and stronger ...
- Word Count: 1725
- Approx Pages: 7
- Grade Level: High School