Although he did not explicitly seek the office of commander and even claimed that he was not equal to…
The Great Seal of the State of Wyoming. The seal shows two men symbolizing livestock and mining next…
At the end of the lengthy series of entrance ways leading into the interior is the structure's main…
The chief advantages of the horizontal sundial are that it is easy to read, and the sun lights the face…
A sundial is a device that measures time by the position of the Sun. In common designs such as the horizontal…
Remains of the circular walls round towns and palaces, which are known under the name Cyclopean, exist…
Remains of the circular walls round towns and palaces, which are known under the name Cyclopean, exist…
The frieze of the Doric order is not taken up with sculpture in uninterrupted succession, but it occurs…
The Roman square panels is an 1879 bas-relief design found near the Tiber river in Rome, Italy. This…
The Assyrian pavement square panel is a divided into eight equal spaces that are decorated with a repeated…
The Greek square panel is found on the coffer of the Propylaea ceiling, the entrance to the Acropolis…
The Greek square panel is found on the coffer of the Propylaea ceiling, the entrance to the Acropolis…
The Greek square panel is found in Athens. This panel is divided into eight equal spaces that are decorated…
The Greek square panel is found on the coffer of the Parhtenon ceiling, a Greek Temple. This panel is…
This decorated square panel is found on a 10th century book. This panel is divided into eight equal…
The Scandinavian square panel is a bas-relief design found on a Celtic stone cross. This panel is divided…
The Medieval square panel is a tile that is divided into eight equal spaces that are decorated with…
The Medieval square panel is a tile that is divided into eight equal spaces that are decorated with…
The Medieval square panel is a tile that is divided into eight equal spaces that are decorated with…
The Medieval square panel is a tile that is divided into eight equal spaces that are decorated with…
"The galvanometer consists of two distinct coils of wire, each having the same resistance, and having…
Illustration showing that the rolling of non-cylindrical surfaces. "If the angular velocity ratio of…
Illustration showing the rolling of two logarithmic spirals of equal obliquity.
"If two equal ellipses, each turning about one of its foci, are placed in contact in such a way that…
Illustration of the rolling of equal parabolas. "The two parabolas may be considered as two ellipses…
Illustration of the rolling of equal hyperbolas. If two equal hyperbolas are placed so that the distances…
Illustration of one possible outcome (1 triangle occurs) when discussing the ambiguous case using the…
Illustration showing complex numbers with a modulus equal to unity. The lines representing these numbers…
A funnel-shaped piece of brass is placed over the ends of a galvanometer when the resistance is equal…
Illustration used to show how to divide a given straight line into required number of equal parts.
Illustration used to show how to divide a given straight line into required number of equal parts.
Illustration used to show how to "find an arc of a circle having a known radius, which shall be equal…
Illustration used to show how to find a straight line of the same length as a given arc of a circle.
Illustration of an irregular solid form made up of triangular surfaces unfolded on a flat surface. A…
"If two angles not in the same plane have their sides respectively parallel and lying in the same direction,…
An illustration of a oyster shell. The common name oyster is used for a number of different groups of…
An illustration of a oyster shell. The common name oyster is used for a number of different groups of…
An illustration of a oyster shell. The common name oyster is used for a number of different groups of…
A cube (A) has sides of 20 inches in length each, making its solid contents equal 8000 cubic inches.…
The obverse and reverse sides of the farthing depicting Charles II. The farthing was an English coin…
"Bisecting gage, a gage formed by a bar carrying two heads or cheeks connected by two arms of equal…
Illustration of a regular nonagon. A nonagon is a closed geometric figure with 9 sides. A regular nonagon…
Diagram used to prove the theorem: "Two trihedral angles, which have three face angles of the one equal…
Diagram used to prove the theorem: "The lateral area of a prism is equal to the product of a lateral…
Diagram used to prove the theorem: "Two prisms are equal when the three faces about a trihedral of one…
Diagram used to prove the theorem: "The opposite faces of a parallelopiped are equal and parallel."
Diagram used to prove the theorem: "The plane passed through two diagonally opposite edges of a parallelopiped…
Diagram used to prove the theorem: "The rectangular parallelopipeds which have two dimensions in common…
Diagram used to prove the theorem: "The rectangular parallelopipeds are to each other as the product…
Diagram used to prove the theorem: "The volume of a rectangular parallelopiped is equal to the product…
Diagram used to prove the theorem: "The volume of a any parallelopiped is equal to the product of its…
Diagram used to prove the theorem: "The volume of a triangular prism is equal to the product of its…
Diagram used to prove the theorem: "Two triangular pyramids having equivalent bases and equal altitudes…
Diagram used to prove the theorem: "The volume of a triangular pyramid is equal to one third of a triangular…
Diagram used to prove the theorem: "The volume of a prismatoid is equal to the product of one-sixth…