A skate with a curved blade, somewhat resembling in shape the rocker of a cradle.
Hardened steel tool with a curved, serrated edge; used to roughen a metal plate for mezzotints.
The amount of curve in the keel line of the boat.
Curvature along the keel line of the kayak, so the bottom resembles the bottom of a rocking chair.
upward curvature of the bottom of a boat at the ends.
A measure of the amount of a curve in the portion of a skate blade that touches the ice. Speed skating blades have little rocker, which makes them faster but less maneuverable. Hockey skates have a great deal of rocker, allowing greater maneuverability.
Wooden box rocked back and forth to separate gold from rock and dirt; sometimes it is called a "cradle" because of its resemblance to a baby's cradle.
Lengthwise curve of a kayak hull.
the curve along the bottom of the board. The amount that the nose and tail of the board are curved up. If a board has 4 cm of rocker, then the tip and tail are 4 cm higher than the middle of the board.
A tool used to roughen the surface of the plate for mezzotint, and intaglio process.
Curved shape in the wheelbase on which the skate “rocks†or tips. Rocker can be affected by changing the position of the eccentric spacers or by using a combination of wheel sizes.
The serrated, half-moon-shaped tool that is rocked back and forth in all directions over the entire plate in order to create the roughened surface for the mezzotint.
Rectangular wooden box set on rockers, used in mining. The rocking motion caused the mixture of dirt and water to flow through the box, with gold-bearing particles trapped by riffles on the bottom. It was also called a cradle because of its resemblance. Improved upon by the long tom and the sluice box.
The curvature of the rocker line.
an attendant who rocks a child in a cradle
an ice skate with a curved blade
a curved support that permits the supported object to rock to and fro
a chisel that has a rounded blade with serrated teeth
a curved bar fixed to an item so that it may rock
a simple yet robust curved board on which children can rock
The amount of curve of the part of a skate blade that touches the ice; hockey skates, for example, have plenty of rocker, allowing for quick turns and maneuvering, while speed skate blades have almost no rocker, which allows for greater speed on the straight aways, but less agility.
A steel tool with a serrated, curved front edge used in mezzotint to abrade the surface of the plate. Silk Screen A form of stencil printing in which an image is produced by using a squeegee to push ink through a stretched mesh fabric (historically silk). Nonprinted areas of the screen are blocked off using a resist.
Serrated cutting tool used to create the rough surface of a mezzotint plate, permitting it to print solid black before scraping or burnishing.
The upward curve of the keel line from the center of the kayak toward the ends; rocker is best seen when you look at a kayak from the side. More rocker helps the boat make quick, easy turns in tight coastal areas or rivers, and it helps you stay on course in rough seas because it keeps you on top of waves. In flat or moderate conditions, less rocker helps you paddle efficiently in a straight line.
The curve of the surfboard bottom from nose to tail viewed from the side. Probably the single most important factor in surfboard design, because it controls the general flow of water from its entry (where water first contacts the bottom) to its release (where water leaves the board). The difficulty of handshaping an evenly balanced rocker is legendary among shapers, but has largely been relieved by improved blank technology and the use of computer shaping machines. * see illustration
The upward curvature of the keel towards the bow and stern.
Upward curvature of the keel line from the center toward the ends of a boat. Lots of rocker means quick, easy turns.
A chair mounted on curved blades which permit it to rock back and forth. This uniquely American piece of furniture was developed in the Colonial period.
The amount of upward curve at the bow and stern of the canoe.
The curve of the surfboard bottom from nose to tail. Probably the most important factor in surfboard design because it controls the general flow of water from it's entry point to it's release.
Describes the curvature of a boat's keel line from the center to the ends. The more rocker a boat has, the easier it is to turn.
The upward sweep of the keel toward the bow and stern. The more pronounced the rocker, the easier the canoe is to pivot.
The amount of curvature in a wakeboard. If a wakeboard has 2 inches of Rocker, then the tip and tail are 2 inches higher than the middle of the board. There are two types of rocker, continuous and three-stage. Continuous rocker is a smooth curve, while a board with three-stages of rocker, with a flat spot in the middle of the board.
The curvature of the sole from the heel to the toe of a boot to facilitate walking.
upward curve in bottom of boat towards ends. Narrow boats need more than wide ones to make up their displacement
A multi-toothed steel tool for laying mezzotint ground. It is rocked across the plate many times in all directions to produce the characteristic burr.
In canoe design, the curve of the keel line from bow to stern. A straight keel line has no rocker, tracking well but lacking maneuverability. A heavy rocker is exceptionally maneuverable but will not track well. Moderately rockered canoes are usually straight with a rise toward the ends. Most general recreation canoes have a moderate rocker.
The instrument used to prepare a mezzotint plate.
1. A turn on one foot in which the skater changes direction but not edge, producing a trace which is a section of one circle before the turn and a section of another circle of opposite curvature after the turn. The cusp of the turn points inwards from the center of the circle preceding the turn and outwards towards the center of the circle following the turn. 2. Any compulsory figure consisting of three circles in which rocker turns are used to transition from the center circle to the end circles. 3. The curved contour extending from the heel to toe of a skate blade.