ClipArt ETC
A small blue fly, slender and somewhat flattened in appearance, with yellow or reddish legs.

Window Fly

A small blue fly, slender and somewhat flattened in appearance, with yellow or reddish legs.

A bird with long legs

Bird

A bird with long legs

This painting by Correggio is one of his more famous pieces depicting Madonna holding Christ in her arms. This painting can be found in the Dresden Gallery

Madonna and Saints

This painting by Correggio is one of his more famous pieces depicting Madonna holding Christ in her…

A crab dancing on a rock with its arms spread out.

Crab Dancing

A crab dancing on a rock with its arms spread out.

A father carrying her daughter into a sunset while she sleeps.

Daughter In Fathers Arms

A father carrying her daughter into a sunset while she sleeps.

Horsetail, view of a spore with the attached arms moistened.

Horsetail

Horsetail, view of a spore with the attached arms moistened.

Horsetail, view of a spore with the attached arms dry.

Horsetail

Horsetail, view of a spore with the attached arms dry.

Pediculus Pubis. The crab-louse is gray-black and is a much broader square form than the other two species of louse, that has been a great scourge to soliders in time of war. This insect has been named the crab-louse from its broad crab-like appearance. It is of grayish color; the head is small, and appears to be united with the broad body without any thorax; it inhabits the hairy part of the body, under the arms or shoulders, in the beard, etc., but appears to avoid the head. These insects pierce deeply into the skin of mankind, and produce an intolerable itching.

Crab Louse

Pediculus Pubis. The crab-louse is gray-black and is a much broader square form than the other two species…

(1732-1799) Pierre-Augustin Caron de Beaumarchais was a watch-maker, inventor, musician, politician, invalid, fugitive, spy, publisher, arms-dealer, and revolutionary for both the French and American. He was famous for his theatrical works, especially the three Figaro plays.

Pierre Beaumarchais

(1732-1799) Pierre-Augustin Caron de Beaumarchais was a watch-maker, inventor, musician, politician,…

"The field spaniel, a dog to which very great attention has been paid by breeders and fanciers, who have lengthened its body and shortened its legs at the expense of symmetry."—Finley, 1917

Field Spaniel

"The field spaniel, a dog to which very great attention has been paid by breeders and fanciers, who…

"A common scale-beam, used for weighing, is a lever, suspended at the centre of gravity, so that the two arms balance each other. Hence the machine is called a balance. The fulcrum, or what is called the pivot, is sharpended, like a wedge, and made of hardened steel, so as much as possible to avoid friction." -Comstock 1850

Scale

"A common scale-beam, used for weighing, is a lever, suspended at the centre of gravity, so that the…

"The upright cyclinder a, is a tube which has a funnel shaped mouth for the admission of the stream of water from the pipe b. This tube is six or eight inches in diameter, and may be from ten to twenty feet long. The arms n and o, are also tubes communicating freely with the upright one, from the opposte sides of which they proceed." -Comstock 1850

Centrifugal Mill

"The upright cyclinder a, is a tube which has a funnel shaped mouth for the admission of the stream…

"The fire engine is a modification of the forcing pump. It consists of two such pumps, the pistons of which are moved by a lever whith equal arms, the common fulcrum being at C." -Comstock 1850

Fire Engine

"The fire engine is a modification of the forcing pump. It consists of two such pumps, the pistons of…

A small piece of bone, ground very thin and highly magnified. "If a bit of bone is still more magnified we find that very small cavities called lacunae lie between the lamelae; from each lacuna radiate many extremely fine tubes, the canaliculi, so that it looks like a small animal with a great many legs. The innermost canaliculi open into the Haversian canal of the system to which they belong, and those of various lacunae communicate with one another, so that a set of passages is provided through which liquid which transudes from the blood vessel in the Haversian canal can ooze through the bone." —Newell, 1900.

Section of Bone

A small piece of bone, ground very thin and highly magnified. "If a bit of bone is still more magnified…

Calipers used to take measurements; using compasses with curved legs, for measuring the diameter, of round bodies.

Calipers

Calipers used to take measurements; using compasses with curved legs, for measuring the diameter, of…

"The balance is essentially a lever of the first class, having equal arms. The beam carries a pan at each end, one for the weidhts used, the other for the article to be weighed." -Avery 1895

Balance

"The balance is essentially a lever of the first class, having equal arms. The beam carries a pan at…

"Considered as a lever, the fulcrum is at the common axis, while the arms of the lever are the radii of the wheel and of the axle. The usual arrangement is to take ac, the radius of the wheel, as the power arm, and bc , the radius of the axle, as the weight arm." -Avery 1895

Wheel and Axle

"Considered as a lever, the fulcrum is at the common axis, while the arms of the lever are the radii…

"When bodies of equal weight are supported by the arms of a lever, they will balance each other when placed at equal distances from the fulcrum." —Quackenbos 1859

Balance

"When bodies of equal weight are supported by the arms of a lever, they will balance each other when…

"When bodies of unequal weight are supported by the arms of a lever, they will balance each other whenever the weight of the one multiplied into its distance from the fulcrum." —Quackenbos 1859

Steelyard

"When bodies of unequal weight are supported by the arms of a lever, they will balance each other whenever…

"In compound levers, equilibrium is established when the power, multiplied by the first arms of all the levers, is equal to the weight multiplied by the last arms of all the levers." —Quackenbos 1859

Compound Lever

"In compound levers, equilibrium is established when the power, multiplied by the first arms of all…

"High volumes of steam were pumped into the hollow sphere. The steam would then escape through the many evenly spaced arms around the center of the sphere thus causing the engine to rotate." —Quackenbos 1859

Hero's Steam Engine

"High volumes of steam were pumped into the hollow sphere. The steam would then escape through the many…

Sawhorse used to length of legs.

Sawhorse

Sawhorse used to length of legs.

Illustration to show that the bisector of an exterior angle of an isosceles triangle, formed by producing one of the legs through the vertex, is parallel o the base.

Bisector of an Exterior Angle of an Isosceles Triangle

Illustration to show that the bisector of an exterior angle of an isosceles triangle, formed by producing…

Illustration to show that if one of the legs of an isosceles triangle is produced through the vertex by its own length, the line joining he end of the leg produced to the nearer end of the base is perpendicular to the base.

Leg Produced through the Vertex of an Isosceles Triangle

Illustration to show that if one of the legs of an isosceles triangle is produced through the vertex…

Illustration to show the medians drawn to the legs of an isosceles triangle.

Medians Drawn Drawn to Legs of Isosceles Triangles

Illustration to show the medians drawn to the legs of an isosceles triangle.

Illustration to show the perpendiculars dropped from the midpoint of the base to the legs of an isosceles triangle are equal.

Perpendiculars Dropped From Midpoint of Base to Legs of Isosceles Triangles

Illustration to show the perpendiculars dropped from the midpoint of the base to the legs of an isosceles…

Illustration to show that if from any point in the base of an isosceles triangle parallels to the legs are drawn, a parallelogram is formed whose perimeter is constant, being equal to the sum of the legs of the triangle.

Isosceles Triangle With Parallelogram inside

Illustration to show that if from any point in the base of an isosceles triangle parallels to the legs…

Illustration showing the diameter of a circle inscribed in a right triangle is equal to the difference between the sum of the legs and the hypotenuse.

Circle Inscribed in a Right Triangle

Illustration showing the diameter of a circle inscribed in a right triangle is equal to the difference…

Illustration where one leg of a right triangle is the diameter of a circle. The tangent at the point where the circumference cuts the hypotenuse bisects the other leg.

Circle With a Right Triangle

Illustration where one leg of a right triangle is the diameter of a circle. The tangent at the point…

Back view of legs, outlining bones and showing muscles.

Back View of Legs

Back view of legs, outlining bones and showing muscles.

Showing relations of the muscles and bones of the arms from the inner side.

Bones and Muscles of the Arms

Showing relations of the muscles and bones of the arms from the inner side.

Showing relations of the muscles and bones of the arms from the outer side

Bones and Muscles of the Arms

Showing relations of the muscles and bones of the arms from the outer side

Superficial veins of the legs. Labels: 1, saphena major; 2, collateral branch; 3, anastomosis of veins; 4, internal saphena; 5, origin of the saphena vein; 6, anastomosing branch; 7, branches on the back of the leg; 8, the great internal vein of the foot; 9, arch of veins on the metatarsal bones; 10, branch from the heel; 11, branches on the sole of the foot.

Veins of the Legs

Superficial veins of the legs. Labels: 1, saphena major; 2, collateral branch; 3, anastomosis of veins;…

The heart, showing its relative position to the lungs. The heart is almost wholly covered up by the lungs and it is encased in a sack or bag (the pericardium), and around this there is considerable padding. The lungs are represented as drawn apart, so that a full view of the heart with its arteries and veins can be seen, and the sac of the heart and packing material is also removed. At <em>a</em> is the trachea or windpipe; on each side are the two arteries that go to the head; <em>c</em> is the artery that goes to the arm; <em>b, b</em> are the veins coming from the head, and <em>d, d</em> the veins from the arms, all emptying into a large vein that goes to the right auricle of the heart, <em>e</em>; <em>f</em> is the large vein that brings the blood from below to this auricle; <em>g</em> is the right ventricle, <em>i</em> the left, and <em>h</em> is the aorta as it goes down from the heart.

Heart and Lungs

The heart, showing its relative position to the lungs. The heart is almost wholly covered up by the…

Illustration of a right triangle used to show the Pythagorean Theorem (the square of the hypotenuse is equal to the sum of the squares of the legs).

Right Triangle

Illustration of a right triangle used to show the Pythagorean Theorem (the square of the hypotenuse…

Illustration of a right triangle with legs labeled 150 and 85. This could be used to find the hypotenuse using Pythagorean Theorem.

Right Triangle With Sides 85 and 150

Illustration of a right triangle with legs labeled 150 and 85. This could be used to find the hypotenuse…

The lower part of the large muscle that raises the heel during walking. P, the muscle, makes up most of the bulk of the calf of the leg. The weight of the body rests upon the bone W. In walking, as we raise the body in taking a step, we do it first by raising the heel with the muscle P, the pressure being on the ball of the foot, F. This muscle does here with the weight of the body what the muscles of your arms do to the load in a wheel barrow when you raise it by the handles.

Heel Muscle

The lower part of the large muscle that raises the heel during walking. P, the muscle, makes up most…

Virginia Shilling (Shilling) Virginia Colony coin from 1774. Obverse has an image of a right-facing head with the inscription - GEORGIUS III DEI GRATIA. Reverse shows an image of a crowned coat of arms with the date at the top and the inscription - VIRGI NIA

Silver Virginia Shilling Coin, 1774

Virginia Shilling (Shilling) Virginia Colony coin from 1774. Obverse has an image of a right-facing…

New York Cent (1 cent) New York coin from 1787. Obverse has the right-facing image of a man surrounded with the inscription - GEORGE CLINTON. The reverse shows the state coat of arms with the inscription - 1787 EXCELSIOR below the figure.

Copper Cent Coin, 1787

New York Cent (1 cent) New York coin from 1787. Obverse has the right-facing image of a man surrounded…

New York Cent (1 cent) New York coin from 1787. Obverse has the state coat of arms with the inscription - EXCELSIOR beneath the figure. Reverse shows a right-facing heraldic eagle with thirteen stars over head, surrounded by the inscription - E PLURIBUS UNUM 1787.

Copper Cent Coin, 1787

New York Cent (1 cent) New York coin from 1787. Obverse has the state coat of arms with the inscription…

Virginia Half Pence (half pence) Virginia Colony coin from 1773. Obverse has an image of a right-facing head with the inscription - GEORGIUS III REX. Reverse shows an image of a crowned coat of arms with the date at the top and the inscription - VIRGI NIA 1773.

Copper Half Pence Coin, 1773

Virginia Half Pence (half pence) Virginia Colony coin from 1773. Obverse has an image of a right-facing…

Twenty Shillings Bill (20 shillings) Delaware currency from 1746. Type with engraved border and royal arms printed by Benjamin Franklin.

Paper Money, Twenty Shillings Bill, 1746

Twenty Shillings Bill (20 shillings) Delaware currency from 1746. Type with engraved border and royal…

Six Pence (6 pence) New Hampshire currency from 1742. Image is the Coat of Arms of Great Britain; large bill.

Paper Money, Six Pence Bill, 1742

Six Pence (6 pence) New Hampshire currency from 1742. Image is the Coat of Arms of Great Britain; large…

One Shilling (1 shilling) New Jersey currency from 1776. Image is the Coat of Arms of Great Britain.

Paper Money, One Shilling Bill, 1776

One Shilling (1 shilling) New Jersey currency from 1776. Image is the Coat of Arms of Great Britain.

One Shilling and Six Pence (1 shilling 6 pence) (18 pence) New Jersey currency from 1781. Image is the Coat of Arms of New Jersey.

Paper Money, One Shilling and Six Pence Bill, 1781

One Shilling and Six Pence (1 shilling 6 pence) (18 pence) New Jersey currency from 1781. Image is the…

Five Pounds (5 pounds) New York currency from 1759. Image is the New York City Coat of Arms. Beneath the image is the inscription - 'TIS DEATH TO COUNTERFEIT THIS BILL.

Paper Money, Five Pounds Bill, 1759

Five Pounds (5 pounds) New York currency from 1759. Image is the New York City Coat of Arms. Beneath…

Five Pounds (5 pounds) New York currency from 1771. Image is the Coat of Arms of New York City. Beneath the image is the inscription - 'TIS DEATH TO COUNTERFEIT THIS BILL.

Paper Money, Five Pounds Bill, 1771

Five Pounds (5 pounds) New York currency from 1771. Image is the Coat of Arms of New York City. Beneath…

Half Dollar (50 cents) New York currency from 1775. Image is the Coat of Arms of New York City.

Paper Money, Half Dollar Bill, 1775

Half Dollar (50 cents) New York currency from 1775. Image is the Coat of Arms of New York City.

Twenty Shillings Bill (20 shillings) Pennsylvania currency from 1756. Image is the Coat of Arms of William Penn. Bill was printed by Benjamin Franklin.

Paper Money, Twenty Shillings Bill, 1756

Twenty Shillings Bill (20 shillings) Pennsylvania currency from 1756. Image is the Coat of Arms of William…

Eight Shillings Bill (8 shillings) Pennsylvania currency from 1777. Frame, arms and value printed in red.

Paper Money, Eight Shillings Bill, 1777

Eight Shillings Bill (8 shillings) Pennsylvania currency from 1777. Frame, arms and value printed in…

Four Dollars ($4) Virginia currency from 1776. Image is the new Coat of Arms for the State of Virginia.

Paper Money, Four Dollars Bill, 1776

Four Dollars ($4) Virginia currency from 1776. Image is the new Coat of Arms for the State of Virginia.

Illustration of a giant stepladder, sometimes called a skyscraper stepladder, that is opened next to a palm tree. One of the bottom legs of the unfolded ladder is adjacent to the tree. The ladder forms an isosceles triangle with the ground.

Skyscraper Giant Stepladder

Illustration of a giant stepladder, sometimes called a skyscraper stepladder, that is opened next to…

Illustration used to prove the Pythagorean Theorem, according to Euclid. A perpendicular is drawn from the top vertex of the right triangle extended through the bottom square, forming 2 rectangles. Each rectangle has the same area as one of the two legs. This proves that the sum of the squares of the legs is equal to the square of the hypotenuse (Pythagorean Theorem).

Euclid's Pythagorean Theorem Proof

Illustration used to prove the Pythagorean Theorem, according to Euclid. A perpendicular is drawn from…

Illustration that can be used to prove the Pythagorean Theorem, the sum of the squares of the legs is equal to the square of the hypotenuse.

Geometric Pythagorean Theorem Proof

Illustration that can be used to prove the Pythagorean Theorem, the sum of the squares of the legs is…

Illustration that can be used to prove the Pythagorean Theorem, the sum of the squares of the legs is equal to the square of the hypotenuse. The geometrical illustration depicts a 3,4,5 right triangle with the square units drawn to prove that the sum of the squares of the legs (9 + 16) equals the square of the hypotenuse.

Geometric Pythagorean Theorem Proof

Illustration that can be used to prove the Pythagorean Theorem, the sum of the squares of the legs is…

A visual illustration used to prove the Pythagorean Theorem by rearrangement. When the 4 identical triangles are removed, the areas are equal. Thus, proving the sum of the squares of the legs is equal to the square of the hypotenuse.

Pythagorean Theorem Proof by Rearrangement

A visual illustration used to prove the Pythagorean Theorem by rearrangement. When the 4 identical triangles…

In some instruments joints are held in position by lock nuts allowing ample movement of the legs, yet gives proper stiffness

Compass

In some instruments joints are held in position by lock nuts allowing ample movement of the legs, yet…

In changing the compass from a small to large radius, hold the legs together with one hand and spin the nut with the other, in order to save wear on the threads.

Adjusting the Compass

In changing the compass from a small to large radius, hold the legs together with one hand and spin…

A dog sitting up, perched on his hind legs.

Dog

A dog sitting up, perched on his hind legs.

A baby walking to a little girl.

Girl with baby

A baby walking to a little girl.