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Sawdust made with hand saw Ogatan, Japanese charcoal briquettes made from sawdust Sawdust vendors in Kashgar markets. Sawdust (or wood dust) is a by-product or waste product of woodworking operations such as sawing, sanding, milling and routing. It is composed of very small chips of wood.
An acute triangle (or acute-angled triangle) is a triangle with three acute angles (less than 90°). An obtuse triangle (or obtuse-angled triangle) is a triangle with one obtuse angle (greater than 90°) and two acute angles. Since a triangle's angles must sum to 180° in Euclidean geometry, no Euclidean triangle can have more than one obtuse ...
Pressed wood, also known as presswood, is any engineered wood building and furniture construction material made from wood shavings and particles, sawdust or wood fibers bonded together with an adhesive under heat and pressure. [1]
There are angles that are not constructible but are trisectible (despite the one-third angle itself being non-constructible). For example, 3 π / 7 is such an angle: five angles of measure 3 π / 7 combine to make an angle of measure 15 π / 7 , which is a full circle plus the desired π / 7 .
Jun. 12—For a businessman with the right acumen, soggy wood pellets are simply sawdust waiting to happen. That is the view Josh Kirkland took of the sodden remains of the wood pellets that ...
In China, Pei Xiu (224–271) identified "measuring right angles and acute angles" as the fifth of his six principles for accurate map-making, necessary to accurately establish distances, [5] while Liu Hui (c. 263) gives a version of the calculation above, for measuring perpendicular distances to inaccessible places.
The widely accepted interpretation of, e.g. the Poggendorff and Hering illusions as manifestation of expansion of acute angles at line intersections, is an example of successful implementation of a "bottom-up," physiological explanation of a geometrical–optical illusion. Ponzo illusion in a purely schematic form and, below, with perspective clues
With real nature, we can receive answers that render the most alien-looking and silent beings understandable, from plants to sea urchins and sponges—much like they did for Aristotle, who was ...