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  2. Artesonado - Wikipedia

    en.wikipedia.org/wiki/Artesonado

    Artesonado in the Throne Room of the Aljafería in Zaragoza, Spain Artesonado in the Tlaxcala City Cathedral, Mexico. Artesonado or Spanish ceiling is a term for "a type of intricately joined wooden ceiling in which supplementary laths are interlaced into the rafters supporting the roof to form decorative geometric patterns", [1] found in Spanish architecture.

  3. T puzzle - Wikipedia

    en.wikipedia.org/wiki/T_puzzle

    The four pieces are usually one isosceles right triangle, two right trapezoids and an irregular shaped pentagon. Despite its apparent simplicity, it is a surprisingly hard puzzle of which the crux is the positioning of the irregular shaped piece. The earliest T puzzles date from around 1900 and were distributed as promotional giveaways.

  4. Missing square puzzle - Wikipedia

    en.wikipedia.org/wiki/Missing_square_puzzle

    However, the blue triangle has a ratio of 5:2 (=2.5), while the red triangle has the ratio 8:3 (≈2.667), so the apparent combined hypotenuse in each figure is actually bent. With the bent hypotenuse, the first figure actually occupies a combined 32 units, while the second figure occupies 33, including the "missing" square.

  5. Remove Banner Ads with Ad-Free AOL Mail | AOL Products

    www.aol.com/products/utilities/ad-free-mail

    SYSTEM REQUIREMENTS. Mobile and desktop browsers: Works best with the latest version of Chrome, Edge, FireFox and Safari. Windows: Windows 7 and newer Mac: MacOS X and newer Note: Ad-Free AOL Mail ...

  6. A-frame building - Wikipedia

    en.wikipedia.org/wiki/A-frame_building

    An A-frame ceiling can be open to the top rafters. Although the triangle shape of the A-frame has been present throughout history, it surged in popularity around the world from roughly the mid-1950s through the 1970s. It was during the post–World War II era that the A-frame acquired its most defining characteristics.

  7. Viga (architecture) - Wikipedia

    en.wikipedia.org/wiki/Viga_(architecture)

    Engelmann spruce is preferred because of "wood character and lack of cracking," but Ponderosa pine (Pinus ponderosa) is more commonly used. [7] Because the availability of vigas longer than 15 feet is limited by the size of the trees cut for the purpose, traditional viga -constructed rooms are typically less than 15 feet (4.6 m) wide. [ 8 ]

  8. Pattern Blocks - Wikipedia

    en.wikipedia.org/wiki/Pattern_blocks

    The second has a brown half-trapezoid and a pink half-triangle. Another set, Deci-Blocks, is made up of six shapes, equivalent to four, five, seven, eight, nine and ten triangles respectively. Christopher Danielson developed a new set of blocks, called Twenty-First Century Pattern Blocks . [ 8 ]

  9. Glossary of nautical terms (A–L) - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_nautical_terms...

    1. Wooden blocks at the side of a spar. 2. Flat plates of iron or wood bolted to the masthead to form angle supports for the cross-trees. [36] 3. The sides of a block or gun-carriage. chief engineer The senior engineering officer (abbreviated ChEng). chine 1. An angle in the hull. 2. A line formed where the sides of a boat meet the bottom. [2]