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A pallet of "8-inch" concrete blocks An interior wall of painted concrete blocks Concrete masonry blocks A building constructed with concrete masonry blocks. A concrete block, also known as a cinder block in North American English, breeze block in British English, or concrete masonry unit (CMU), or by various other terms, is a standard-size rectangular block used in building construction.
Jesse Besser (1882–1970) was an inventor and manufacturer from Alpena in the U.S. state of Michigan.He is best known for inventing, and supervising a series of improvements to, a tamping machine used to rapidly press wet, flexible concrete into blocks, thereby making possible a new generation of applications in masonry construction.
A yoga brick or yoga block is a smooth block of wood or of firm but comfortable material, such as hard foam rubber or cork, used as a prop in yoga as exercise. The use of wooden bricks to assist in alignment was introduced by B. K. S. Iyengar , founder of Iyengar Yoga , and has spread to practices such as Restorative Yoga and Yin Yoga .
In England, the length and width of the common brick remained fairly constant from 1625 when the size was regulated by statute at 9 x 4 + 1 ⁄ 2 x 3 inches [45] (but see brick tax), but the depth has varied from about two inches (51 mm) or smaller in earlier times to about 2 + 1 ⁄ 2 inches (64 mm) more recently.
Length Width Height 3.5 Current 5.75 ... (69.85 mm × 5– 19 mm × 100 mm) = 34.925– 132.715 cm 3. ... evolved into the ATA-7 ZIF with dimensions as stated but ...
Bricks may be differentiated from blocks by size. For example, in the UK a brick is defined as a unit having dimensions less than 337.5 mm × 225 mm × 112.5 mm (13.3 in × 8.9 in × 4.4 in) and a block is defined as a unit having one or more dimensions greater than the largest possible brick.
Mortier de 58 mm type 2 "Crapouillot" [2] France: World War I: 90 [3] 20 cm leLdgW Nazi Germany: World War II: 91.5: 9.15 cm leichtes Minenwerfer System Lanz German Empire: World War I 105: 10.5 cm Luftminenwerfer M15 Austria-Hungary: World War I 105: 10 cm Nebelwerfer 35 Nazi Germany: World War II: 106.7: Ordnance ML 4.2 inch Mortar United ...
210 mm (8.3 in) 21 cm SK L/40 German Empire: World War I - World War II 210 mm (8.3 in) 21 cm SK L/45 German Empire: World War I - World War II 210 mm (8.3 in) 21 cm kan M/98 (Bofors 21 cm naval gun L/44 model 1898) Sweden-Norway: 1900s - World War II 228.6 mm (9.00 in) RML 9 inch 12 ton gun United Kingdom: 1860s - 1890s 229 mm (9.0 in)