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录像揭示剥橘子瞬间
来源:中国科学报      作者:冯维维      时间:2017-01-09 20:32      关键词:录像,揭示,剥橘子,瞬间

本报讯 剥桔子时,无论你的动作多慢多小心,仍然可能将橘汁弄在手上。为了了解这背后的原因,研究人员用高速相机通过慢动作捕捉了在挤压或弯曲柠檬、脐橙和巴伦西亚橙子的外壳时发生的情况。

研究人员随后利用工程工具测量充满液体的油腺体内累积的压力,这些油腺体位于柑橘类水果皮的下方。腺体从球形到近圆柱状形状各异。科学家发现,它们能够以每秒10.5米的速度向外喷射出液滴,这比昆虫飞翔或雨点滴落的速度更快。

该团队在近日举行的社会综合与比较生物学年会上报告称,这些液滴可以在1毫米的形变内从静止达到最高速度,其承受的加速度是宇航员飞往太空时经历的1000倍。

目前,该研究团队正在设法弄清这一速度为何会如此快地获得,为什么油会如此快地变为小液滴。他们表示,这些信息有助于设计充满药物爆炸口袋的紧急哮喘吸入器。(冯维维)


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