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The English concertina and the Duet concertina bear similarities in history and construction. Both systems generally play a chromatic scale and are unisonoric, with each key producing the same note whether the bellows are being pushed or pulled. Both of these English instruments are smaller than German concertinas, and are usually hexagonal in ...
The effectiveness of any wire obstacle is greatly increased by planting anti-tank and blast antipersonnel mines in and around it. Additionally, connecting bounding anti-personnel mines (e.g. the PROM-1) to the obstacle with tripwires has the effect of booby-trapping the obstacle itself, hindering attempts to clear it.
Alf Edwards was a regular accompanist to both A. L. Lloyd and Ewan MacColl, and taught the instrument to Peggy Seeger. His virtuosic and reliable playing was a key element in the adoption of the English concertina by the English folk revival, featuring prominently on influential records such as The Iron Muse and on the Radio Ballads .
Constantine probably came from a corruption/misunderstanding of concertina and led to confusion with the Roman Emperor Constantine. This, in turn, has led to some people trying to differentiate between concertina wire and constantine wire by assigning the term constantine wire to what is commonly known as razor wire.
There was an armored bulkhead at the front and rear of the casemate, and a thick deck protecting the top. The lower edge of the casemate sat on top of ship's belt armour. [29] Some ships, such as HMS Alexandra (laid down 1873), had a two-story casemate. [30] A "casemate" was an armored room in the side of a warship, from which a gun would fire.
Low self-discharge nickel–metal hydride battery: 500–1,500 [14] Lithium cobalt oxide: 90 500–1,000 Lithium–titanate: 85–90 6,000–30,000 to 90% capacity
For instance, this 12-pack of rechargeable batteries is just $10, with a unit price of $0.86 per battery. A 12-pack from Energizer is almost double the price at $17. A 12-pack from Energizer is ...
The concertina, diatonic and chromatic accordions and the melodica are all free-reed instruments that developed alongside the harmonica. Indeed, the similarities between harmonicas and so-called "diatonic" accordions or melodeons is such that in German the name for the former is "Mundharmonika" and the latter "Handharmonika," which translate as ...