third-order triangulation
61D1 Grand Prix — Category Drifting Country or region  Japan …
62Muḥammad ibn Mūsā al-Khwārizmī — al Khwārizmī redirects here. For other uses, see al Khwārizmī (disambiguation). Muḥammad ibn Mūsā al Khwārizmī …
63Mount Fuji — Fujiyama redirects here. For the roller coaster, see Fujiyama (roller coaster). For the singer, see Ichiro Fujiyama. Mount Fuji Mount Fuji at sunrise Lake Kawaguchi …
64List of geometry topics — This is list of geometry topics, by Wikipedia page.*Geometric shape covers standard terms for plane shapes *List of mathematical shapes covers all dimensions *List of differential geometry topics *List of geometers *See also list of curves, list… …
65Gatineau Park — ( fr. Parc de la Gatineau) is a park near Gatineau, Québec, Canada, just north of Ottawa, Ontario. Administered by the federal National Capital Commission, the park forms a 363 km² triangle west of the Gatineau River, whose circumference is 179.2 …
66Secure communication — includes means by which people can share information with varying degrees of certainty that third parties cannot know what was said. Other than communication spoken face to face out of possibility of listening, it is probably safe to say that no… …
67Virus — This article is about the biological agent. For other uses, see Virus (disambiguation). For a generally accessible and less technical introduction to the topic, see Introduction to viruses. Viruses …
68tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …
69Mass surveillance — A closed circuit television camera. Mass surveillance is the pervasive surveillance of an entire population, or a substantial fraction thereof. Modern governments today commonly perform mass surveillance of their citizens, explaining that they… …
70Triangulated category — A triangulated category is a mathematical category satisfying some axioms that are based on the properties of the homotopy category of spectra, and the derived category of an abelian category. A t category is a triangulated category with a t… …
