1. Pyramids of Egypt
Its base covers 13.6 acres (equal to seven midtown Manhattan city blocks), each side being greater than five acres in area. A highway lane eight feet wide and four inches thick could be built from San Francisco to New York and put inside the Great Pyramid. ... On bright mornings and late afternoons, sunlight reflected by this vast mirrored surface of 5-1/4 acres distinguished the Pyramid as being visible from the moon. ... So the Pyramid is a square circle, and thus pi was designed into it 4,600 years ago. Pi is demonstrated many times throughout the Pyramid. ...
- Word Count: 1725
- Approx Pages: 7
- Grade Level: High School