An anvil is a basic tool, in the simplest terms it is a block with a hard surface on which another object is struck. The inertia of the anvil allows the energy of the striking tool to be transferred to the work piece.

Anvil Tool

An anvil is a basic tool, in the simplest terms it is a block with a hard surface on which another object…

"The blocks, which are technically known as voussoirs, should be of a wedge shape, the center or top block being the keystone A; the lower blocks B B which rest on the supporting pier are the springers, the upper surface of which is called the skewback, C C; the side blocks, as D, are termed the hauches. The lower surface or soffit of the arch is the intrados, E, and the upper surface the entrados, F. The rise of the arch is the distance from the springing to the soffit, G, the width between the springers is called the span, H, and the radius I. The triangular spaces between the arches are termed spandrils, K." — The Encyclopedia Britannica, 1910

Arch

"The blocks, which are technically known as voussoirs, should be of a wedge shape, the center or top…

"The "block" chain consists of a series of central blocks connected by side plates." — The Encyclopedia Britannica, 1910

Bicycle Chain

"The "block" chain consists of a series of central blocks connected by side plates." — The Encyclopedia…

"A Block is a pulley or a system of pulleys rotating on a pintle mounted in its frame or shell with its band and strap. There are many kinds of blocks, as a pulley block, a fiddle block, a fish block, a fly block, a heart block, a hook block, etc. A block and tackle is the block and the rope rove through it, for hoisting or obtaining a purchase."—(Charles Leonard-Stuart, 1911)

Block and Tackle

"A Block is a pulley or a system of pulleys rotating on a pintle mounted in its frame or shell with…

"Combinations of pulleys are made in great variety. In the forms most commonly used, one continuous cord passes around all the pulleys. Frequently two or more sheaves are mounted in the same block and turn on the same axis, as in the common block and tackle." — Avery, 1895

Block and tackle

"Combinations of pulleys are made in great variety. In the forms most commonly used, one continuous…

Block faulting - ridges produced by tilting of blocks.

Block Faulting

Block faulting - ridges produced by tilting of blocks.

"Block shears act with additional leverage, and can consequently be used for rather thicker metal, the upper bow being replaced by a long straight handle, and the lower one by a stake which can by firmly fixed in a block of woood or otherwise." — Encyclopedia Britannica, 1893

Block Shears

"Block shears act with additional leverage, and can consequently be used for rather thicker metal, the…

An illustration of a toy alphabet block.

Alphabet Block

An illustration of a toy alphabet block.

Component that is part of a larger construction

Building Block

Component that is part of a larger construction

Isometric of a wooden block.

Isometric of a Block

Isometric of a wooden block.

"Mooring anchors are those which are places in harbours, for the convenience of vessels frequenting them. A large buoy is attached to the end of the mooring cable, and the ship is made fast to a ring-bolt fitted on the buoy. Mooring anchors are not limited by considerations of weight, as other anchors are, he only requirements being that they have sufficient holding power, and do not project above the ground, as any projection in the shallow waters in which they are usually placed would render ships liable to injury from grounding on them, and be dangerous to fishing-nets." — Encyclopedia Britanica, 1893

Buoy Mooring Block

"Mooring anchors are those which are places in harbours, for the convenience of vessels frequenting…

"Mooring anchors are those which are places in harbours, for the convenience of vessels frequenting them. A large buoy is attached to the end of the mooring cable, and the ship is made fast to a ring-bolt fitted on the buoy. Mooring anchors are not limited by considerations of weight, as other anchors are, he only requirements being that they have sufficient holding power, and do not project above the ground, as any projection in the shallow waters in which they are usually placed would render ships liable to injury from grounding on them, and be dangerous to fishing-nets." — Encyclopedia Britanica, 1893

Cast-iron Mooring Anchor

"Mooring anchors are those which are places in harbours, for the convenience of vessels frequenting…

An aerial-view of Lake Alfred, Florida.

City

An aerial-view of Lake Alfred, Florida.

The Renaissance elliptic panel is a German design block found on a book-cover.

Renaissance Elliptic Panel

The Renaissance elliptic panel is a German design block found on a book-cover.

The Renaissance elliptic panel is a German design block found on a book-cover.

Renaissance Elliptic Panel

The Renaissance elliptic panel is a German design block found on a book-cover.

The Renaissance elliptic panel is a German design block found on a book-cover.

Renaissance Elliptic Panel

The Renaissance elliptic panel is a German design block found on a book-cover.

The Renaissance elliptic panel is a German design block found on a book-cover.

Renaissance Elliptic Panel

The Renaissance elliptic panel is a German design block found on a book-cover.

"The wood used for engraving is boxwood, nearly all of which is imported from Turkey." —The Popular Cyclopedia, 1888

Wood engraving

"The wood used for engraving is boxwood, nearly all of which is imported from Turkey." —The Popular…

"A pulley is a wheel having a grooved rim for carrying a rope or other line, and tuning on an axis carried in a frame, called a pulley block. The pulley is fixed if the block is stationary." — Avery, 1895

Fixed Pulley

"A pulley is a wheel having a grooved rim for carrying a rope or other line, and tuning on an axis carried…

"[This illustration] represents a fixed pulley. The block is attached to a projecting beam. P is the power, and W the weight. For every inch that P descends, W ascends the same distance." —Quackenbos 1859

Fixed Pulley

"[This illustration] represents a fixed pulley. The block is attached to a projecting beam. P is the…

A young girl seated in front of a fishbowl, with a book and toys nearby.

Girl and fishbowl

A young girl seated in front of a fishbowl, with a book and toys nearby.

Hadrian's Wall is a stone and turf fortification built by the Roman Empire across the width of what is now northern England. Construction began in 122 AD.

Hadrian's Wall

Hadrian's Wall is a stone and turf fortification built by the Roman Empire across the width of what…

"A pulley is a wheel having a grooved rim for carrying a rope or other line, and turning on an axis carried in a frame, called a pulley block. The pulley is movable if the block moves during the action of the power." — Avery, 1895

Movable pulley

"A pulley is a wheel having a grooved rim for carrying a rope or other line, and turning on an axis…

"A movable pulley is one whos block is movable. One end of the cord is fastened to the beam, and the weight is sspended from the pulley, the other end of the cord being drawn by the application of a force P. A little consideration will show that if P moves through a certain distance, say 1 foot, W will move through half that distance, or 6 inches; hence, a pull of 1 pound at P will life 2 pounds at W." — Hallock, 1905

Movable Pulley

"A movable pulley is one whos block is movable. One end of the cord is fastened to the beam, and the…

"Mushroom anchors, first proposed for ships, are now only used for moorings." — Encyclopedia Britanica, 1893

Mushroom Anchor

"Mushroom anchors, first proposed for ships, are now only used for moorings." — Encyclopedia Britanica,…

A block of absorbent material saturated with ink; used to transfer ink evenly to a rubber stamp

Stamp Pad

A block of absorbent material saturated with ink; used to transfer ink evenly to a rubber stamp

"Raise the rifle with both hands high enough to clear the line of vision, barrel downward, point of the bayonet to the left front. When necessary to raise the rifle well above the head, it may be supported between the thumb and forefinger of the left hand. This position will be necessary against attacks from higher elevation, such as men mounted or on top of parapets." — Moss, 1914

High parry

"Raise the rifle with both hands high enough to clear the line of vision, barrel downward, point of…

"Carry the point of the bayonet down until it is at the height of the knee, moving the point of the bayonet sufficiently to the right (left) to keep the opponent's attacks clear of the point threatened. These parries are rarely used, as an attack below the waist leaves the head and body exposed." — Moss, 1914

Low parry

"Carry the point of the bayonet down until it is at the height of the knee, moving the point of the…

"These parries are rarely used, as an attack below the waist leaves the head and body exposed." — Moss, 1914

Low parry

"These parries are rarely used, as an attack below the waist leaves the head and body exposed." —…

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 1

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 10

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 100

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 101

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 11

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 12

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 13

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 14

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 15

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 16

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 17

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 18

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 19

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 2

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 20

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 21

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 22

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 23

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 24

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 25

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 26

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 27

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 28

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 29

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 3

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 30

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 31

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 32

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 33

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 34

Geometric pattern for translation and rotation exercises.

Geometric pattern for translation and rotation exercises.

Geometric Block Pattern 35

Geometric pattern for translation and rotation exercises.