earth concrete
131Orders of magnitude (mass) — Iron weights up to 50 kilograms depicted in Dictionnaire encyclopédique de l épicerie et des industries annexes. To help compare different orders of magnitude, the following list describes various mass levels between 10−36 kg and 1060 kg …
132St. Francis Dam — The St. Francis Dam was a concrete gravity arch dam, designed to create a reservoir as part of the Los Angeles Aqueduct. The dam was located 40 miles (64 km) northwest of Los Angeles, California, near the present city of Santa Clarita. The dam… …
