Black and white outline flag of Samoa. Red with a blue rectangle in the upper hoist-side quadrant bearing five white five-pointed stars representing the Southern Cross constellation

Flag of Samoa, 2009

Black and white outline flag of Samoa. Red with a blue rectangle in the upper hoist-side quadrant bearing…

Color flag of Sri Lanka. Yellow with two panels; the smaller hoist-side panel has two equal vertical bands of green (hoist side) and orange; the other panel is a large dark red rectangle with a yellow lion holding a sword, and there is a yellow bo leaf in each corner; the yellow field appears as a border around the entire flag and extends between the two panels.

Flag of Sri Lanka, 2009

Color flag of Sri Lanka. Yellow with two panels; the smaller hoist-side panel has two equal vertical…

Black and white outline flag of Sri Lanka. Yellow with two panels; the smaller hoist-side panel has two equal vertical bands of green (hoist side) and orange; the other panel is a large dark red rectangle with a yellow lion holding a sword, and there is a yellow bo leaf in each corner; the yellow field appears as a border around the entire flag and extends between the two panels

Flag of Sri Lanka, 2009

Black and white outline flag of Sri Lanka. Yellow with two panels; the smaller hoist-side panel has…

Color flag of Taiwan. Red field with a dark blue rectangle in the upper hoist-side corner bearing a white sun with 12 triangular rays.

Flag of Taiwan, 2009

Color flag of Taiwan. Red field with a dark blue rectangle in the upper hoist-side corner bearing a…

Color flag of Tajikistan. Red field with a dark blue rectangle in the upper hoist-side corner bearing a white sun with 12 triangular rays.

Flag of Tajikistan, 2009

Color flag of Tajikistan. Red field with a dark blue rectangle in the upper hoist-side corner bearing…

Black and white outline flag of Tajikistan. Red field with a dark blue rectangle in the upper hoist-side corner bearing a white sun with 12 triangular rays

Flag of Tajikistan, 2009

Black and white outline flag of Tajikistan. Red field with a dark blue rectangle in the upper hoist-side…

Color flag of Tonga. Red with a bold red cross on a white rectangle in the upper hoist-side corner.

Flag of Tonga, 2009

Color flag of Tonga. Red with a bold red cross on a white rectangle in the upper hoist-side corner.

Black and white outline flag of Tonga. Red with a bold red cross on a white rectangle in the upper hoist-side corner

Flag of Tonga, 2009

Black and white outline flag of Tonga. Red with a bold red cross on a white rectangle in the upper hoist-side…

Color flag of the United States. 13 equal horizontal stripes of red (top and bottom) alternating with white; there is a blue rectangle in the upper hoist-side corner bearing 50 small, white, five-pointed stars arranged in nine offset horizontal rows of six stars (top and bottom) alternating with rows of five stars; the 50 stars represent the 50 states, the 13 stripes represent the 13 original colonies; known as Old Glory; the design and colors have been the basis for a number of other flags, including Chile, Liberia, Malaysia, and Puerto Rico.

Flag of the United States, 2009

Color flag of the United States. 13 equal horizontal stripes of red (top and bottom) alternating with…

Black and white outline flag of the United States. 13 equal horizontal stripes of red (top and bottom) alternating with white; there is a blue rectangle in the upper hoist-side corner bearing 50 small, white, five-pointed stars arranged in nine offset horizontal rows of six stars (top and bottom) alternating with rows of five stars; the 50 stars represent the 50 states, the 13 stripes represent the 13 original colonies; known as Old Glory; the design and colors have been the basis for a number of other flags, including Chile, Liberia, Malaysia, and Puerto Rico

Flag of the United States, 2009

Black and white outline flag of the United States. 13 equal horizontal stripes of red (top and bottom)…

An illustration of a rectangle shaped steel magnet with "consequent poles at a and b." -Century, 1889

Rectangle Shaped Steel Magnet

An illustration of a rectangle shaped steel magnet with "consequent poles at a and b." -Century, 1889

This is a plan of the church of San Ambrogio, Italy. This is an example of Italian Lombard Romanesque architecture. This church represents the "earliest [example] of the solution of the great problem which was exercising the minds of the church builders towards the end of the 11th century, the vaulting of the nave." The scale is in feet.

Plan of San Ambrogio, 1000–1200

This is a plan of the church of San Ambrogio, Italy. This is an example of Italian Lombard Romanesque…

This is a plan of the San Michele, Pavia, Italy. This is an example of Italian Lombard Romanesque architecture. This church represents the "earliest [example] of the solution of the great problem which was exercising the minds of the church builders towards the end of the 11th century, the vaulting of the nave." The scale is in feet.

Plan of San Michele, Pavia, 1000–1200

This is a plan of the San Michele, Pavia, Italy. This is an example of Italian Lombard Romanesque architecture.…

This is a plan of the Cathedral at Würms, Germany. It is an example of Romanesque and Gothic architecture in Germany. The scale is in feet. Construction was started in AD 1000 and continued until 1025. In Germany and Italy up until this point in architecture open timber roofing or flat ceilings were being used, however this problem was "solved in Germany, as well as in Italy, [with the] vaulting over the nave, and the cathedrals of Spires, Worms and Mainz are the three most important churches in which this was accomplished,"

Plan of Cathedral at Worms, AD 1000–1025

This is a plan of the Cathedral at Würms, Germany. It is an example of Romanesque and Gothic architecture…

Solutions for silhouette outlines of shapes (rectangle, parallelogram, isosceles triangle, double arrow, rhombus, hexagon) made from tangram pieces. Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. 7 figures consisting of triangles, squares, and parallelograms are used to construct the given shapes.

Shapes Silhouette Solution Tangram Card

Solutions for silhouette outlines of shapes (rectangle, parallelogram, isosceles triangle, double arrow,…

The illustration of a rectangular pyramid unfolded by creating edges equal length to the base and meeting at point E.

Development of Rectangular Pyramid

The illustration of a rectangular pyramid unfolded by creating edges equal length to the base and meeting…

A postage stamp is adhesive paper evidence of a fee paid for postal services. Usually a small rectangle attached to an envelope, the stamp signifies the person sending it has fully or partly paid for delivery.

Fish Design Postage Stamp

A postage stamp is adhesive paper evidence of a fee paid for postal services. Usually a small rectangle…

The development, or unfolded prism, of the rectangular pyramid. The sides of the prism is joined at point E for reference, and the shape of the sides are by using the reference point.

Development of Rectangle Pyramid

The development, or unfolded prism, of the rectangular pyramid. The sides of the prism is joined at…

A T-shaped or L-shaped instrument for drawing or testing right angles.

Folding Square

A T-shaped or L-shaped instrument for drawing or testing right angles.

"It was the custom of Northmen to bury their dead sea king near the sea in his ship and over the spot to raise a great mound of earth. The boat shown in the cut was found in 1880 in a burial mound at Gokstadt, South Norway. Its length is 78 feet. From the mode of sepulture it is inferred that the mound was raised between A.D. 700 and 1000."—Myers, 1905

A Viking Ship

"It was the custom of Northmen to bury their dead sea king near the sea in his ship and over the spot…

A style of chair designed by Thomas Sheraton. This chair takes on a rectangular back.

Sheraton Chair 2

A style of chair designed by Thomas Sheraton. This chair takes on a rectangular back.

Pictured are nectar cells magnified 1000 diameters. The nectariferous nucleus is also pictured.

Nectar Cells

Pictured are nectar cells magnified 1000 diameters. The nectariferous nucleus is also pictured.

This illustration shows two glue cakes after the glue manufacturing process. The top image is a french cake, 7.5x7.5 inches square. The bottom image is an ordinary cake, a rectangle, 9 in by 5.5 in.

Glue Cake (Manufacturing)

This illustration shows two glue cakes after the glue manufacturing process. The top image is a french…

Illustration of an English king between AD 800 and 1000. The king is very likely King Alfred who reigned from 871-899. The king is wearing a tunic and fur-trimmed cloak, along with striped tights and no shoes. He is looking up in an awkward position. His crown has three prongs. Both hands are raised in the air.

An English King from the 9th or 10th Century, Possibly King Alfred

Illustration of an English king between AD 800 and 1000. The king is very likely King Alfred who reigned…