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eliu joined: 2007-08-09 posted: 11474 promoted: 617 bookmarked: 187 新竹, 台灣 |
學名:Celtis sinensis or Celtis formosana Hayata 用內徑約3-4mm 的觀音竹竹筒,找到可插入內徑的細竹子,有點緊但不要太緊,另外一端需要一個方便發射的把手。把朴樹的果實塞入洞口,然後撞擊地面把朴樹子打進內徑中,壓碎沒關係,插入細竹子往前推一段距離,然後慢慢往回拉一段距離,此時空氣會進入細竹子 & 朴樹子之間,形成空氣柱。然後快速用力把細竹子用力往前推,此時擠壓的高壓空氣會把朴樹子高速射出,而且會有爆裂聲,射到人很痛。
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coolcd joined: 2008-01-21 posted: 2601 promoted: 348 bookmarked: 95 |
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eliu joined: 2007-08-09 posted: 11474 promoted: 617 bookmarked: 187 新竹, 台灣 |
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