A clutch in which one part turns the other by the friction between them

Friction Clutch

A clutch in which one part turns the other by the friction between them

An illustration of a small dog holding a fan with its tail.

Dog with Fan

An illustration of a small dog holding a fan with its tail.

An illustration of a father holding his young son.

Father Holding Young Boy

An illustration of a father holding his young son.

A young girl holding a doll.

Girl Holding a Doll

A young girl holding a doll.

Also known as the Castle of St. Angelo. A castle is a defensive structure seen as one of the main symbols of the Middle Ages.

Hadrian's Castle, Rome

Also known as the Castle of St. Angelo. A castle is a defensive structure seen as one of the main symbols…

An illustration of a hand holding a military toy figurine.

Hand Holding Military Toy Figurine

An illustration of a hand holding a military toy figurine.

An illustration of a hand holding a pen.

Hand Holding Pen

An illustration of a hand holding a pen.

A hand holding a disk connected to a stick.

Hand with disk

A hand holding a disk connected to a stick.

A hand holding a tube, with one end in a bowl.

Hand with tube

A hand holding a tube, with one end in a bowl.

A part that is designed to be held or operated with the hand.

Multiple Purpose Handle

A part that is designed to be held or operated with the hand.

An incorrect way to hold a pen. The result is stiff, heavy, cramped penmanship, and rough marks.

Incorrect Penmanship

An incorrect way to hold a pen. The result is stiff, heavy, cramped penmanship, and rough marks.

An incorrect way to hold a pen. The large finger should be straightened, and the end caused to drop lightly beneath the holder.

Incorrect Penmanship

An incorrect way to hold a pen. The large finger should be straightened, and the end caused to drop…

An incorrect way to hold a pen. The result of dropping the hand too heavily upon the wrist and allowing it to roll to one side.

Incorrect Penmanship

An incorrect way to hold a pen. The result of dropping the hand too heavily upon the wrist and allowing…

An incorrect way to hold a pen. Another position when the pen is held too tightly.

Incorrect Penmanship

An incorrect way to hold a pen. Another position when the pen is held too tightly.

An illustration of a knight riding a horse and holding a javelin with a child holding onto the horse and knight.

Knight Riding Horse with a Child Holding onto Knight

An illustration of a knight riding a horse and holding a javelin with a child holding onto the horse…

An illustration of an older man holding a small child.

Man and Baby

An illustration of an older man holding a small child.

An illustration of a man holding a bonnet.

Man Holding Bonnet

An illustration of a man holding a bonnet.

An illustration of an African American slave holding a small child.

Man holding child

An illustration of an African American slave holding a small child.

An illustration of a man standing in the palm of a hand.

Man in Palm of Hand

An illustration of a man standing in the palm of a hand.

An illustration of an elderly man holding his cane in one hand and his hat in the other.

Man with Cane

An illustration of an elderly man holding his cane in one hand and his hat in the other.

An illustration of a man wearing a helmet handing another man, leaning against a tree, a small tree branch.

Men Holding Tree Branch

An illustration of a man wearing a helmet handing another man, leaning against a tree, a small tree…

An illustration of a mother holding a child on her lap.

Mother Holding Child on Lap

An illustration of a mother holding a child on her lap.

An illustration of a mother holding a child to look at a bird in a cage.

Mother Holding Child to Look at Bird in Cage

An illustration of a mother holding a child to look at a bird in a cage.

The proper way to hold a pen.

Penmanship

The proper way to hold a pen.

The proper way to hold a pen.

Penmanship

The proper way to hold a pen.

The first position to be taken, when placing the hand in correct position for writing.

Penmanship

The first position to be taken, when placing the hand in correct position for writing.

The hand elevated upon the two lower fingers, with the pen placed in correct position for writing.

Penmanship

The hand elevated upon the two lower fingers, with the pen placed in correct position for writing.

Another view of the correct position to hold a pen.

Penmanship

Another view of the correct position to hold a pen.

The correct position when the pen is at the bottom of an extended letter below the line, the pen being, as shown, nearly perpendicular.

Penmanship

The correct position when the pen is at the bottom of an extended letter below the line, the pen being,…

The front view of the hand showing the position of the forefinger, which should rest squarely on the top of the holder.

Penmanship

The front view of the hand showing the position of the forefinger, which should rest squarely on the…

An illustration of a Persian man holding a lamp and bowing.

Persian Man Bowing

An illustration of a Persian man holding a lamp and bowing.

The father of Reynard the Fox sweeps the dirt with his tail over the hole where he hides his newfound treasure.

Reynard the Fox: Covering the Treasure

The father of Reynard the Fox sweeps the dirt with his tail over the hole where he hides his newfound…

Reynard the Fox and Isegrim the wolf fight each other. Reynard outsmarts him and knocks him down.

Reynard the Fox: Reynard's Victory

Reynard the Fox and Isegrim the wolf fight each other. Reynard outsmarts him and knocks him down.

A hand with bar demonstrating the attractive properties of static electricity.

Demonstration of Static Electricity

A hand with bar demonstrating the attractive properties of static electricity.

An illustration of a woman holding a cherub.

Woman & Cherub

An illustration of a woman holding a cherub.

An illustration a woman holding a baby up towards the sky.

Woman Holding Baby Up

An illustration a woman holding a baby up towards the sky.

An illustration of a woman standing by a fence holding an egg.

Woman Holding Egg

An illustration of a woman standing by a fence holding an egg.

An illustration of a woman holding a tray.

Woman Holding Tray

An illustration of a woman holding a tray.

An illustration of a woman holding a tray.

Woman with Tray

An illustration of a woman holding a tray.