艺术家: Leonardo Da Vinci
日期: 1512
尺寸: 28 x 20 cm
博物馆: Royal Collection (London, United Kingdom)
术: 绘图
Recto:用说明性图画来记下心脏的阀门和内部的血流;用模具来制作肺或主动阀的玻璃模型. 莱昂纳多对心脏的分析是他多次科学调查中最辉煌的. 与牛心相通,他研究了各种器皿的安排和阀门在一系列有浓厚注释的活页中的动作. 在这里,莱昂纳多记录了一个出人意料的实验,他在实验中利用他作为雕塑家的技术知识来了解血液从阀门流出的情况. 他将熔化的蜡倒入了主动脉阀门周围的腔中,他用蜡铸成 " 吹入薄玻璃的石膏模 " ,从右上方横截面可以看到。 莱昂纳多随后通过他的玻璃模型泵出与草籽相混合的水,在阀门外的拓宽(sinus)中观测出动荡的漩涡(从图上看是位于右中部),并正确得出结论,这些漩涡有助于在心脏每拍后血流停止后关闭阀门. 原文改编自Leonardo da 芬奇: 温奇: 2018年伦敦绘画生活.
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