Title Explosives

  • Nagano
Topic(s):
Castles/Palaces
Medium/Media of Use:
Interpretive Sign
Text Length:
≤250 Words
FY Prepared:
2022
Associated Tourism Board:
Matsumoto City

爆弾


火薬は大砲や火縄銃を発射するための原動力であるが、爆弾の材料としても利用された。この図は『武器皕圖』の一コマで、数種類の火薬類が描かれている:

  1. 信管で発火させる手榴弾
  2. 大口径火縄銃用の炸薬弾
  3. 地雷
  4. 砂時計型手榴弾
  5. 爆薬砲弾(盆貌弾、英語の "bomb "に由来)
  6. 布や藁で編んだ袋に入れて携帯し、投擲した榴弾クラスター爆弾(葡萄弾)

初期の手榴弾(右のケースに展示)は、釉薬のかかった陶器の壷に火薬と榴散弾を詰めたものである。その後、2枚の銅製の半球に火薬と鉄片を詰め、布で包み、漆を塗ったものが作られた。第二次世界大戦末期、金属が不足したため、軍は応急処置として再び陶製の手榴弾を作った。

Explosives


Gunpowder was the propellant used to fire cannons and muskets, but it could also be used to make bombs. This panel from Buki nihyaku-zu (Illustrations of 200 Weapons) shows several kinds of explosive munitions:

  1. a hand grenade ignited by a fuse;
  2. an explosive round for a large-bore matchlock musket;
  3. a land mine;
  4. an hourglass-shaped grenade;
  5. an explosive cannonball (bombu-dama, from the English word “bomb”); and
  6. a grapeshot cluster bomb (budō-dama) that was carried and thrown in a bag made from cloth and woven straw.

Early grenades (an example of which is displayed in the case on the right) were essentially glazed ceramic jars filled with gunpowder and shrapnel. Later iterations consisted of two copper halves filled with gunpowder and iron shavings, then wrapped in fabric and coated with a layer of lacquer. Toward the end of World War II, when metal became scarce, the military once again made ceramic grenades as a stopgap measure.

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