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Xolotl statue displayed at the Museo Nacional de Antropología in Mexico City. Codex Borbonicus (p. 16) Xolotl is depicted as a companion of the Setting Sun. [4] He is pictured with a knife in his mouth, a symbol of death. [5] Xolotl was the sinister god of monstrosities who wears the spirally-twisted wind jewel and the ear ornaments of ...
Direction shown by smoke drift but not by wind vanes 2 Light breeze 4–6 knots 4–7 mph 6–11 km/h 1.6–3.3 m/s 1–2 ft 0.3–0.6 m Small wavelets still short but more pronounced; crests have a glassy appearance but do not break Wind felt on face; leaves rustle; wind vane moved by wind 3 Gentle breeze 7–10 knots 8–12 mph 12–19 km/h
The water temperature in Xochimilco rarely rises above 20 °C (68 °F), although it may fall to 6–7 °C (43–45 °F) in the winter, and perhaps lower. [ 20 ] Surveys in 1998, 2003, and 2008 found 6,000, 1,000, and 100 axolotls per square kilometer in its Lake Xochimilco habitat, respectively. [ 21 ]
The NWS office in Tulsa, Oklahoma, in conjunction with Oral Roberts University's mathematics department, published an approximation formula to the WBGT that takes into account cloud cover and wind speed; in limited experimentation (four samples), the office claimed the estimate was regularly accurate to within 0.5 °F (0.28 °C), even with a ...
Observation of wind setup in Vlissingen in 1953. In lakes, wind setup often leads to noticeable fluctuations in water levels.This effect is particularly clear in lakes with well-regulated water levels, such as the IJsselmeer, where the relationship between wind speed, water depth, and fetch length can be accurately measured and observed.
Codex Borgia page 43 depicts a Sun god with the bumpy skin of Nanahuatzin and the canine snout of Xolotl. Beneath this sun-bearing Xolotl/Nanahuatzin lies the source of maize-a nude corn goddess who has star symbols on her body. [2] A close relationship between Xolotl and Nanahuatzin exists. [3] Xolotl is probably identical with Nanahuatl. [4]
Nāhui-Ehēcatl (Wind Sun) – Inhabitants were transformed into monkeys. This world was destroyed by hurricanes. Nāhui-Quiyahuitl (Rain Sun) – Inhabitants were destroyed by rain of fire. Only birds survived (or inhabitants survived by becoming birds). Nāhui-Ātl (Water Sun) – This world was flooded turning the inhabitants into fish. A ...
A bottom-mounted ADCP can measure the speed and direction of currents at equal intervals all the way to the surface. Mounted sideways on a wall or bridge piling in rivers or canals, it can measure the current profile from bank to bank. In very deep water they can be lowered on cables from the surface. The primary usage is for oceanography. [4]