为什么没有尖角自然?- 江南体育网页版- - - - -地球科学堆江南电子竞技平台栈交换 最近30从www.hoelymoley.com 2023 - 07 - 07 - t14:52:21z //www.hoelymoley.com/feeds/question/7998 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/7998 1 为什么没有尖角自然? ruslaniv //www.hoelymoley.com/users/5975 2016 - 05 - 13 - t07:11:48z 2019 - 05 - 14 - t11:15:28z < p >我读了一些文章解释了为什么圆角更美观,像< a href = " http://uxmovement.com/thinking/why-rounded-corners-are-easier-on-the-eyes/ " rel =“nofollow”> < / >,这一切都很有道理,但我的问题是:< / p > < p >为什么自然没有尖角?什么是或一组法律管理这种行为?< / p > //www.hoelymoley.com/questions/7998/-/7999 # 7999 12 回答的好为什么没有尖角自然? 好 //www.hoelymoley.com/users/2570 2016 - 05 - 13 - t09:34:17z 2016 - 05 - 13 - t09:34:17z < p >的前提下,你的问题是完全错误的。自然界中有许多尖角的例子,最明显的是形成良好的晶体。< / p > < p >黄铁矿是一个典型的例子,在评论中被@wienein提到。在理想的情况下形成立方晶体和锐利的边缘。< / p >

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A classic non-crystalline example would be volcanic glasses such as obsidian, which fracture to produce extremely sharp edges and were historically used by some cultures for making blades and other sharp tools.

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