The Machine Gun BESA was a British version of the Czech ZB53 (Model 37) machine gun and used by the UK for tank armament in the World War II. The word caliber (American English) or calibre (British English) designates the interior diameter of a tube or the exterior diameter of a wire or rod. ... The 7x57 Mauser, also known as the 7 mm Mauser, 7 mm Spanish Mauser, and . ... Mushroom cloud from the nuclear explosion over Nagasaki rising 18 km (over 11 miles) into the air, August 9, 1945 after the Allied atomic bombings of Hiroshima and Nagasaki. ...
History
BSA signed an agreement with 'Zbrojovka Brno' in 1936 which allowed them to make the 7.92 mm ZB53. The War Office ordered the weapon in 1938 and production began in 1939. Although it took the 7.92 x 57 mm Mauser round and the standard British round was the .303", it was used extensively in British tanks of World War II. The Birmingham Small Arms Company (BSA) was a British manufacturer of military equipment and vehicles. ... 1936 was a leap year starting on Wednesday (link will take you to calendar). ... The War Office was a government agency in both the United Kingdom and the United States. ... 1938 was a common year starting on Saturday (link will take you to calendar). ... 1939 was a common year starting on Sunday (link will take you to calendar). ... The 7x57 Mauser, also known as the 7 mm Mauser, 7 mm Spanish Mauser, and . ...
A larger version at 15 mm calibre, also belt-fed, (and weighing 125 lbs) was developed by BSA again as a vehicle armament. It was able to fired single shot rather than just full automatic. It was used on the Light Tank Mk VI. A belt is an ammunition feeding device for a firearm. ... General characteristics Length 4 m Width 2. ...
Fragments of Setchell's 1912 air-dried herbarium specimens of Besa papillaeformis from the type locality were hand-sectioned with a razor blade, stained with 1% aniline blue and mounted in 30% karo/distilled water on microscope slides.
Besa papillaeformis has the following morphological features that are characteristic of the Phyllophoraceae: the first cell of the carpogonial branch bears a sterile cell; cystocarps are internal; spermatangial parent cells are elongated; the medulla consists of isodiametric cells that may stretch becoming locally filiform; multiple secondary pit connections form between vegetative cells (e.g., Maggs 1990).
Reproduction in Besa papillaeformis is assumed to be sexual on the basis of the presence of spermatangia and tetrasporangia, even though stages showing gonimoblast initials cut off from auxiliary cells were not seen.
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