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[citation needed] aport Toward the port side of a vessel. apron A piece of wood fitted to the after side of the stem post and the fore side of the sternpost of a clinker-built boat, where the planking is secured. [14] apparent wind The combination of the true wind and the headwind caused by the boat's forward motion.
hole A square that is inside or near a player's territory that cannot be controlled by a pawn. It is a gap in a player's pawn configuration, and especially dangerous when the hole is close to the center or near the king. A knight landing on a hole may be part of an attack. An example of a hole is e4 in the Stonewall Attack. [201] home rank
A tide pool in Porto Covo, west coast of Portugal. A tide pool or rock pool is a shallow pool of seawater that forms on the rocky intertidal shore.These pools typically range from a few inches to a few feet deep and a few feet across. [1]
Someone who explores caves as a hobby, [2] a synonym for caver Spelunking. Main article: Spelunking. Exploring caves as a hobby, [2] a synonym for caving Squeeze A tight passage. Stygofauna. Main article: Stygofauna. Small aquatic animals living in caves and aquifers. Sump. Main article: Sump (cave) A cave that is submerged under water.
Area or basement area In Georgian architecture, the small paved yard giving entry, via "area steps", to the basement floor at the front of a terraced house. Arris A sharp edge created when two surfaces converge; this includes the raised edge between two flutes on a column or pilaster, if that edge is sharp. Arris Rail
Jewish refugees look out through a porthole of a ship while docked in the port of Haifa, c. 1950–1959. A porthole, sometimes called bull's-eye window or bull's-eye, [1] is a generally circular window used on the hull of ships to admit light and air.
Small sticks, approximately 30 to 35 centimetres (12 to 14 in) are pushed into the structure to act as thickness guides when the interior is hollowed out. According to Halfpenny and Ozane (1989), the wall at the base should be at least 30 centimetres (12 in) wide and at the top about 20 centimetres (8 in) thick, though wall-base thicknesses of ...
On a screw the bearing area loosely refers to the underside of the head. [32] Strictly speaking, the bearing area refers to the area of the screw head that directly bears on the part being fastened. [33] For a cylindrical bearing it is the projected area perpendicular to the applied force. [34]