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A 16th-century English folding table. The history of the folding table may date back as far as ancient Egypt. By the Colonial and Victorian eras, the tables were common. [1] During the 20th century, folding tables became an inexpensive item manufactured and sold in large quantities. In the 1940s, Durham Manufacturing Company was marketing a ...
Slide rule. Typical ten-inch (25 cm) student slide rule (Pickett N902-T simplex trig) A slide rule is a hand -operated mechanical calculator consisting of slidable rulers for evaluating mathematical operations such as multiplication, division, exponents, roots, logarithms, and trigonometry.
In the mathematics of paper folding, map folding and stamp folding are two problems of counting the number of ways that a piece of paper can be folded. In the stamp folding problem, the paper is a strip of stamps with creases between them, and the folds must lie on the creases. In the map folding problem, the paper is a map, divided by creases ...
Mathematics of paper folding. Map folding for a 2×2 grid of squares: there are eight different ways to fold such a map along its creases. The discipline of origami or paper folding has received a considerable amount of mathematical study. Fields of interest include a given paper model's flat-foldability (whether the model can be flattened ...
Metre-stick. A metrestick divided into 1,000 mm and labeled with 100 cm. A metre-stick, metrestick (or meter-stick and meterstick as alternative spellings); [1] or yardstick[2] is either a straightedge or foldable ruler used to measure length, and is especially common in the construction industry. They are often made of wood or plastic, and ...
Mainstays 4 Foot Fold-in-Half Adjustable Folding Table. $38 $40 Save $2. Useful for game day and beyond, this adjustable folding table can be pulled out whenever you need a little bit of extra ...
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