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A diver uses a depth gauge with decompression tables and a watch to avoid decompression sickness. A common alternative to the depth gauge, watch and decompression tables is a dive computer , which has an integral depth gauge, and displays the current depth as a standard function.
Although this is often used as a term of convenience for parrying daggers in general, it also refers more specifically to the earlier and simpler form of the weapon. It had stout quillons (straight or curved) for effective parrying as well as an additional guard in the form of a ring or shell on one side of the quillons where they crossed the grip.
The steep slope may be curved. An element of the Second Empire architectural style (Mansard style) in the U.S. Neo-Mansard, Faux Mansard, False Mansard, Fake Mansard : Common in the 1960s and 70s in the U.S., these roofs often lack the double slope of the Mansard roof and are often steeply sloped walls with a flat roof.
Norman-style kite shield. [1]A kite shield is a large, almond-shaped shield rounded at the top and curving down to a point or rounded point at the bottom. The term "kite shield" is a reference to the shield's unique shape, and is derived from its supposed similarity to a flying kite, although "leaf-shaped shield" and "almond shield" have also been used in recent literature. [2]
Curvature is usually measured in radius of curvature.A small circle can be easily laid out by just using radius of curvature, but degree of curvature is more convenient for calculating and laying out the curve if the radius is as large as a kilometer or mile, as is needed for large scale works like roads and railroads.
A plan and side view of a generic, empty canal lock. A lock chamber separated from the rest of the canal by an upper pair and a lower pair of mitre gates.The gates in each pair close against each other at an 18° angle to approximate an arch against the water pressure on the "upstream" side of the gates when the water level on the "downstream" side is lower.
Crinkle crankle wall in Bramfield, Suffolk. A crinkle crankle wall, also known as a crinkum crankum, sinusoidal, serpentine, ribbon or wavy wall, is an unusual type of structural or garden wall built in a serpentine shape with alternating curves, originally used in Ancient Egypt, but also typically found in Suffolk in England.
Two styles of scimitars: an Egyptian shamshir (left) and an Ottoman kilij (right). A scimitar (/ ˈ s ɪ m ɪ t ər / or / ˈ s ɪ m ɪ t ɑːr /) [1] is a single-edged sword with a convex curved blade [2] [3] [4] of about 76.2 to 91.44cm (30 to 36 inches) associated with Middle Eastern, South Asian, or North African cultures.