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1\uff0e\u795e\u6bbf\u3068\u697d\u5668\u306e\u300c\u6750\u8cea\u306e\u4e00\u81f4\u300d\u304c\u6301\u3064\u610f\u5473<\/p>\n\n\n\n
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2\uff0e\u4e2d\u4e16\u306e\u6559\u4f1a\u5efa\u7bc9\u3068\u97f3\u697d\u7f8e\u5b66<\/p>\n\n\n\n
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3\uff0e\u73fe\u4ee3\u306e\u79d1\u5b66\u7684\u8996\u70b9\u304b\u3089\u898b\u308b\u767d\u6a80<\/p>\n\n\n\n
\u3067\u306f\u73fe\u4ee3\u306e\u79d1\u5b66\u306f\u3001\u767d\u6a80\u3092\u3069\u306e\u3088\u3046\u306b\u8a55\u4fa1\u3057\u3066\u3044\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u97f3\u97ff\u5de5\u5b66\u3067\u306f\u3001\u6728\u6750\u306e\u97f3\u97ff\u7279\u6027\u3092\u4ee5\u4e0b\u306e\u56db\u3064\u89b3\u70b9\u304b\u3089\u8a55\u4fa1\u3059\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n\n\n\n \u6bd4\u30e4\u30f3\u30b0\u7387\uff08E\/\u03c1\uff09\u306f\u6728\u6750\u306e\u786c\u3055\u3092\u91cd\u3055\u3067\u5272\u3063\u305f\u6570\u5024\u3067\u3001\u9ad8\u3044\u307b\u3069\u97f3\u304c\u3088\u304f\u97ff\u304d\u307e\u3059\u3002\u30d0\u30a4\u30aa\u30ea\u30f3\u306e\u97ff\u677f\u306b\u4f7f\u308f\u308c\u308b\u30b9\u30d7\u30eb\u30fc\u30b9\u306e\u6bd4\u30e4\u30f3\u30b0\u7387\u306f\u7d0430\uff5e35 GPa\u3067\u3059\u304c\u3001\u767d\u6a80\u306f\u6bd4\u91cd\u304c\u9ad8\u304f\u3001\u6bd4\u30e4\u30f3\u30b0\u7387\u306f\u4f4e\u3081\u3067\u3059\u3002<\/p>\n\n\n\n \u307e\u305f\u3001\u5185\u90e8\u640d\u5931\u4fc2\u6570\uff08Q\u5024\uff09\u306f\u3001\u97f3\u304c\u3069\u308c\u3060\u3051\u9577\u304f\u7d9a\u304f\u304b\u3092\u793a\u3057\u307e\u3059\u3002\u30b9\u30d7\u30eb\u30fc\u30b9\u306fQ\u5024\u304c\u9ad8\u304f\u97f3\u304c\u9577\u304f\u97ff\u304d\u307e\u3059\u304c\u3001\u767d\u6a80\u306f\u786c\u304f\u91cd\u3044\u305f\u3081\u3001\u97f3\u306e\u6301\u7d9a\u306f\u77ed\u3081\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n \u97f3\u901f\u306f\u6728\u306e\u4e2d\u3092\u97f3\u304c\u9032\u3080\u65e9\u3055\u3067\u3001\u30b9\u30d7\u30eb\u30fc\u30b9\u306f\u7d044,000\uff5e5,000m\/s\u3002\u4e00\u65b9\u3001\u767d\u6a80\u306f\u5bc6\u5ea6\u304c\u3042\u308b\u306e\u3067\u97f3\u901f\u306f\u3084\u3084\u9045\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n \u5438\u97f3\u7387\u306f\u3001\u97f3\u304c\u3069\u308c\u3060\u3051\u6750\u6599\u306b\u5438\u53ce\u3055\u308c\u308b\u304b\u3092\u793a\u3057\u3001\u30b9\u30d7\u30eb\u30fc\u30b9\u306f\u5438\u97f3\u7387\u304c\u4f4e\u304f\u3066\u53cd\u5c04\u7684\u3067\u3059\u3002\u305d\u308c\u306b\u5bfe\u3057\u3001\u767d\u6a80\u306f\u5438\u97f3\u7387\u304c\u9ad8\u3081\u3067\u3001\u97f3\u3092\u5305\u307f\u8fbc\u3080\u3088\u3046\u306a\u67d4\u3089\u304b\u3044\u97ff\u304d\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n \u697d\u5668\u4f5c\u308a\u304b\u3089\u3059\u308c\u3070\u3001\u8efd\u304f\u3066\u97f3\u306e\u4f1d\u308f\u308a\u3084\u3059\u3044\u7d20\u6750\uff08\u4f8b\u3048\u3070\u30b9\u30d7\u30eb\u30fc\u30b9\uff09\u306e\u307b\u3046\u304c\u597d\u307e\u308c\u308b\u3053\u3068\u3067\u3057\u3087\u3046\u3002\u3057\u304b\u3057\u3001\u5b97\u6559\u7684\u30fb\u8c61\u5fb4\u7684\u306a\u610f\u5473\u3067\u306f\u3001\u767d\u6a80\u306f\u6614\u304b\u3089\u300c\u795e\u8056\u306a\u9999\u308a\u3092\u6301\u3064\u6728\u300d\u3068\u3055\u308c\u3066\u304d\u307e\u3057\u305f\u3002\u795e\u6bbf\u306e\u67f1\u3084\u697d\u5668\u304c\u767d\u6a80\u3067\u4f5c\u3089\u308c\u3066\u3044\u305f\u80cc\u666f\u306b\u306f\u3001\u300c\u7a7a\u9593\u3068\u97f3\u697d\u304c\u8abf\u548c\u3057\u3066\u4e00\u3064\u306b\u306a\u308b\u300d\u3068\u3044\u3046\u5927\u5207\u306a\u8c61\u5fb4\u6027\u304c\u8fbc\u3081\u3089\u308c\u3066\u3044\u308b\u306e\u3067\u3059\u3002<\/p>\n\n\n\n \u3064\u307e\u308a\u3001\u767d\u6a80\u304c\u9078\u3070\u308c\u305f\u7406\u7531\u306f\u3001\u97f3\u306e\u6027\u80fd\u3088\u308a\u3082\u300c\u795e\u8056\u3055\u300d\u3084\u300c\u8c61\u5fb4\u6027\u300d\u304c\u91cd\u8996\u3055\u308c\u305f\u305f\u3081\u3060\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n 4\uff0e\u793c\u62dd\u306b\u6c42\u3081\u3089\u308c\u308b\u3082\u306e\u3068\u306f<\/p>\n\n\n\n \u6700\u5f8c\u306b\u3001\u793c\u62dd\u3068\u306f\u4f55\u304b\u3092\u8003\u3048\u3066\u307f\u307e\u3059\u3002\u793c\u62dd\u3068\u306f\u3001\u795e\u3068\u5411\u304d\u5408\u3044\u3001\u795e\u3092\u3042\u304c\u3081\u308b\u3068\u3066\u3082\u5927\u4e8b\u306a\u884c\u3044\u3067\u3059\u3002\u305d\u306e\u3068\u304d\u3001\u7a7a\u9593\u3068\u97f3\u697d\u3001\u305d\u3057\u3066\u4eba\u3005\u306e\u5fc3\u304c\u4e00\u3064\u306b\u306a\u308b\u3053\u3068\u3092\u76ee\u6307\u3057\u307e\u3059\u3002\u795e\u6bbf\u3068\u697d\u5668\u304c\u540c\u3058\u6750\u3067\u4f5c\u3089\u308c\u3066\u3044\u305f\u3053\u3068\u306f\u3001\u793c\u62dd\u306e\u7a7a\u9593\u3068\u97f3\u697d\u304c\u300c\u540c\u3058\u970a\u7684\u306a\u7d20\u6750\u300d\u3067\u751f\u307f\u51fa\u3055\u308c\u3066\u3044\u305f\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u305d\u3053\u306b\u306f\u3001\u300c\u795e\u3068\u3088\u308a\u6df1\u304f\u3001\u5f37\u304f\u7d50\u3073\u3064\u304d\u305f\u3044\u300d\u3068\u3044\u3046\u4eba\u3005\u306e\u9858\u3044\u304c\u8fbc\u3081\u3089\u308c\u3066\u3044\u305f\u3068\u8a00\u3048\u308b\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002\uff08Dr. Makoto\uff09<\/p>\n\n\n\n Episode 30: The Temple, Instruments, and Sandalwood \u2014 The Harmony of Sacred Material<\/strong><\/p>\n\n\n\n The name “sandalwood” appears even in the Bible, specifically in the book of Kings. Sandalwood is a fragrant, hard, and very dense wood native to India and Southeast Asia. With a specific gravity of around 0.95\u20130.99, it is among the heaviest types of wood and is considered a prestigious material, often used for Buddhist statues and prayer beads.<\/p>\n\n\n\n According to the Bible, King Solomon of ancient Israel used sandalwood in the construction of the temple. Surprisingly, the same wood was also used to make musical instruments such as harps and lyres. This raises an intriguing question: was it mere coincidence that the same wood was used for both the temple and instruments? Or was there a deeper meaning?<\/p>\n\n\n\n 1. The Significance of Shared Material Between Temple and Instruments<\/strong><\/p>\n\n\n\n 1 Kings 10:12 records that sandalwood was used for the temple pillars, the royal palace, and musical instruments. This suggests that sandalwood was chosen for its hardness, fragrance, and rarity\u2014qualities befitting offerings to God.<\/p>\n\n\n\n What\u2019s especially noteworthy is that two very different things\u2014the temple and musical instruments\u2014were made from the same material. In religious music thought, this shared material symbolizes spiritual harmony between space and sound. The temple, as God’s dwelling, and the instruments, as tools of praise, being made from the same wood, reflect a deeper connection with the divine.<\/p>\n\n\n\n From an acoustical engineering perspective, material consistency also matters. For example, spruce is commonly used in musical instruments because it transmits sound well and has low internal friction, making it highly resonant. The same wood is often used in concert hall interiors, allowing the space and instruments to share acoustic properties and produce a natural, rich sound. The use of sandalwood in both temple and instruments may have created a similar \u201cresonant relationship\u201d in the sacred space.<\/p>\n\n\n\n 2. Medieval Church Architecture and Musical Aesthetics<\/strong><\/p>\n\n\n\n This idea is echoed in medieval European church architecture and music. Stone churches were designed to enhance the resonance of Gregorian chant, allowing music and space to work together so that prayers could reach God more effectively.<\/p>\n\n\n\n The 6th-century philosopher Boethius divided music into three categories: \u201cmusic of the cosmos,\u201d \u201cmusic of the human soul,\u201d and \u201caudible music.\u201d He believed music was not just entertainment but a reflection of cosmic order. The use of the same material for both temple and instruments may symbolize this alignment of divine order.<\/p>\n\n\n\n 3. A Scientific View of Sandalwood<\/strong><\/p>\n\n\n\n Modern science evaluates wood acoustics using four key factors:<\/p>\n\n\n\n Specific Young\u2019s Modulus (E\/\u03c1) is the ratio of stiffness to weight. Spruce, used in violin soundboards, has a high value (30\u201335 GPa), while sandalwood\u2019s high density results in a lower value.<\/p>\n\n\n\n The Q factor indicates how long sound lasts. Spruce has a high Q, meaning long resonance, whereas sandalwood\u2019s hardness and weight suggest shorter sustain.<\/p>\n\n\n\n Sound velocity measures how fast sound travels through wood. Spruce transmits sound at about 4,000\u20135,000 m\/s, while sandalwood\u2019s density slows it down.<\/p>\n\n\n\n Absorption rate shows how much sound is absorbed. Spruce has a low absorption rate and reflects sound well. Sandalwood, with a higher absorption rate, produces a softer, enveloping resonance.<\/p>\n\n\n\n From a musical instrument perspective, lighter woods like spruce are preferred for their acoustic performance. However, sandalwood has long been considered sacred for its fragrance and symbolism. The use of sandalwood in both temple and instruments reflects a deeper symbolic meaning: the unity of space and sound in worship.<\/p>\n\n\n\n In short, sandalwood was likely chosen not for its acoustic superiority, but for its spiritual and symbolic significance.<\/p>\n\n\n\n 4. What Worship Seeks to Achieve<\/strong><\/p>\n\n\n\n Finally, what is worship? It is a sacred act of facing God and offering praise. In that moment, space, music, and the hearts of people aim to become one. The fact that both temple and instruments were made from the same material suggests that the worship space and its music were born from the same spiritual substance. It reflects a deep desire to connect more closely and strongly with the divine.\u2014Dr. Makoto<\/p>\n","protected":false},"excerpt":{"rendered":" \u300c\u767d\u6a80\uff08\u3073\u3083\u304f\u3060\u3093\uff09\u300d\u3068\u3044\u3046\u6728\u306e\u540d\u524d\u306f\u3001\u8056\u66f8\u306e\u5217\u738b\u8a18\u306b\u3082\u767b\u5834\u3057\u307e\u3059\u3002\u767d\u6a80\u306f\u30a4\u30f3\u30c9\u3084\u6771\u5357\u30a2\u30b8\u30a2\u306b\u81ea\u751f\u3059 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[8,12],"tags":[],"class_list":["post-1101","post","type-post","status-publish","format-standard","hentry","category-8","category-12"],"_links":{"self":[{"href":"https:\/\/fbi.futakotamagawa.org\/index.php?rest_route=\/wp\/v2\/posts\/1101","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fbi.futakotamagawa.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fbi.futakotamagawa.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fbi.futakotamagawa.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fbi.futakotamagawa.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1101"}],"version-history":[{"count":1,"href":"https:\/\/fbi.futakotamagawa.org\/index.php?rest_route=\/wp\/v2\/posts\/1101\/revisions"}],"predecessor-version":[{"id":1103,"href":"https:\/\/fbi.futakotamagawa.org\/index.php?rest_route=\/wp\/v2\/posts\/1101\/revisions\/1103"}],"wp:attachment":[{"href":"https:\/\/fbi.futakotamagawa.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1101"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fbi.futakotamagawa.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1101"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fbi.futakotamagawa.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\u7279\u6027<\/td> \u97f3\u97ff\u3078\u306e\u5f71\u97ff<\/td> \u767d\u6a80\u306e\u50be\u5411<\/td><\/tr> \u6bd4\u30e4\u30f3\u30b0\u7387<\/td> \u97f3\u306e\u4f1d\u308f\u308a\u3084\u3059\u3055<\/td> \u4f4e\u3081\uff08\u91cd\u3059\u304e\u308b\u305f\u3081\uff09<\/td><\/tr> Q\u5024<\/td> \u97f3\u306e\u6301\u7d9a\u6027<\/td> \u4f4e\u3081\uff08\u97f3\u304c\u6e1b\u8870\u3057\u3084\u3059\u3044\uff09<\/td><\/tr> \u97f3\u901f<\/td> \u97f3\u306e\u660e\u77ad\u3055<\/td> \u3084\u3084\u9045\u3081<\/td><\/tr> \u5438\u97f3\u7387<\/td> \u97f3\u306e\u67d4\u3089\u304b\u3055<\/td> \u9ad8\u3081\uff08\u97ff\u304d\u304c\u307e\u308d\u3084\u304b\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n Property<\/strong><\/td> Acoustic Impact<\/strong><\/td> Sandalwood’s Tendency<\/strong><\/td><\/tr> Specific Young\u2019s Modulus (E\/\u03c1)<\/td> Sound transmission<\/td> Low (due to high density)<\/td><\/tr> Q Factor<\/td> Sound sustain<\/td> Low (quick decay)<\/td><\/tr> Sound Velocity<\/td> Clarity of sound<\/td> Slightly slow<\/td><\/tr> Absorption Rate<\/td> Softness of sound<\/td> High (mellow resonance)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n