1 - How Much Would It
Cost to Build the Pyramid Today? - Natalie Wolchover.
Live Science - https://www.livescience.com/18589-cost-build-great-pyramid-today.html
2 - Program Management
B.C. - Craig Smith. Civil Engineering Magazine. - http://www.ekt.bme.hu/CM-BSC-MSC/ProgramManagementBC.pdf
- [pg. 3]
3 - Sliding Friction on
Wet and Dry Sand - Falls et al. Physical Review
Letters. - https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.112.175502
- [fig. 5]
5 - Ancient Civilizations
3rd Edition - Christopher Scarre and Brian Fagan -
ISBN 13: 9780131928787 - [pg. 126]
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