1. Egyptian Pyramids
... at all contested, but there are many theories on how they were able to carry out this magnificent feat without a crane. It is not known how the Egyptians got the stones from the quarry to the work site. They must have been dragged, for there was not enough surface area for even a team of reasonably strong men to pick up the ... consisted almost entirely of lightly packed calcite crystals that gave it a uniform density. In contrast, the casting stone was less dense and contained numerous air bubbles. Consequently if the casting stones were natural limestone, and did not match that of the...
- Word Count: 1545
- Approx Pages: 6
- Grade Level: Undergraduate