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这是 Youtop 运营的独立目录页面，并非由 NileRed 或 YouTube 运营、赞助或认可。 提交更正. 你是这位创作者吗？认领此页面
NileRed · 发布于 2022年5月18日
Ice normally floats on water because as water freezes it expands, and the density of the solid becomes less than the liquid. This on the other hand is an ice cube that I made, but this one's kind of special, and it's able to sink. This is because it isn't normal water, and it's actually heavy water. This heavy water (D2O), is made when the hydrogen of regular water (H2O) is replaced with deuterium, which is a heavier isotope of hydrogen. Heavy water is about 11% denser than regular water (H20), and this extra weight lets it sink. #shorts
