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index.html
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<html>
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</html>
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<!DOCTYPE html>
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<html lang="zh-TW">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>地球物理小教室：地震波的秘密之旅</title>
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<link href="https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;700&display=swap" rel="stylesheet">
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<link rel="stylesheet" href="styles.css">
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</head>
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<body>
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<header>
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<h1>地球物理小教室：地震波的秘密之旅 🌍</h1>
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<p>跟著老師一起探索如何利用地震波解開大地深處的秘密！</p>
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</header>
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<main>
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<section id="intro">
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<h2>🚀 第一站：認識我們的信差－地震波家族</h2>
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<p>我們在地面製造微小震動，產生「地震波」，就像往水裡丟石頭產生的漣漪。這些波是我們派往地下的信差。它們主要分為兩大家族：</p>
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<div class="wave-container">
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<div class="wave-card">
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<h3>地函波 (Body Waves) - 先鋒部隊</h3>
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<p>跑得飛快，能穿透地球內部。</p>
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<ul>
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<li><strong>P波 (壓縮波):</strong> 速度最快！像毛毛蟲一樣前後伸縮前進。</li>
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<li><strong>S波 (剪力波):</strong> 速度第二！像繩子一樣上下或左右擺動。</li>
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</ul>
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</div>
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<div class="wave-card">
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<h3>表面波 (Surface Waves) - 壓軸登場</h3>
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<p>沿著地表傳播，速度較慢但威力強大。</p>
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<ul>
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<li><strong>洛夫波 (Love Wave):</strong> 讓地面水平扭動。</li>
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<li><strong>雷利波 (Rayleigh Wave):</strong> 讓地面像海浪般滾動。</li>
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</ul>
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</div>
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</div>
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</section>
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<section id="travel-time">
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<h2>📈 第二站：解讀信差的訊息－時走曲線圖</h2>
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<p>我們在地面放置接收器(Geophone)，記錄地震波的抵達時間。將「距離(X)」與「時間(T)」畫成圖，就是解密的關鍵—時走曲線圖！</p>
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<p class="formula">關鍵公式：<strong>斜率 = 1 / 速度(V)</strong></p>
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<p>請<strong>拖動</strong>下圖中的接收器，觀察時走圖的變化！</p>
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<div class="interactive-container">
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<canvas id="travelTimeCanvas" width="600" height="400"></canvas>
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</div>
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<div class="legend">
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<span class="p-wave">P波 (Vp=200 m/s)</span>
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<span class="s-wave">S波 (Vs=120 m/s)</span>
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<span class="r-wave">表面波 (Vr=100 m/s)</span>
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</div>
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</section>
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<section id="refraction">
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<h2>🗺️ 第三站：發現地下的捷徑－折射</h2>
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<p>當地震波從慢速地層(V₁)進入高速地層(V₂)，路徑會發生偏折，這就是「折射」。折射波有時會抄捷徑，比直達波還快抵達！</p>
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<p>請<strong>滑動滑桿</strong>，改變地層二的速度(V₂)，觀察折射路徑的變化。</p>
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<div class="interactive-container">
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<canvas id="refractionCanvas" width="600" height="300"></canvas>
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<div class="slider-container">
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<label for="v2-slider">地層一速度 V₁ = 1000 m/s</label>
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<br>
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<label for="v2-slider">調整地層二速度 V₂: <span id="v2-value">2000</span> m/s</label>
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<input type="range" id="v2-slider" min="1001" max="3000" value="2000">
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</div>
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</div>
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</section>
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</main>
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<footer>
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<p>這是一個基於您提供的地球物理學課本圖片所製作的教學範例。</p>
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</footer>
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<script src="script.js"></script>
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</body>
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</html>
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