Thâu-ia̍h
Appearance
chhiat-oāⁿ Thâu-ia̍h (Pe̍h-oē-jī) — 頭頁 (漢字) 切換
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今仔日的圖相
Flowering trees at the bottom of the Eiffel Tower in Paris (France). Today is the March equinox, which marks the beginning of astronomical spring in the Northern Hemisphere.
今仔日的影片
![]() An experiment showing burning of sulfur in oxygen. A flow-chamber joined to gas washing-bottle (filled with solution of methyl orange) is being used. The product is sulfur dioxide (SO2) with some traces of sulfur trioxide (SO3). The 'smoke' that exits the gas-washing bottle is, in fact, a sulfuric acid fog generated in a reaction represented by:
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照主題自然 社會 · 文化 科學 工程 照地點宇宙 照分類圖相 照創作者照授權版權授權方式 照來源仝這日的圖相 |