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究竟你要长得多胖才能真正防弹？
in Geeker Vision, on 2007-06-28
我们经常会听到有人这样和长得比较胖的朋友开玩笑：你肚子再胖点就可以刀枪不入啦！但大家有没有想过，到底要长得多胖才真正能刀枪不入，或者让子弹打不进身体里呢？很显然，我们的皮肤必须得很厚，这样才能将子弹挡在身体外。那到底要有多厚呢？著名的英国剑桥大学卡文迪许实验室就做过这样的实验，以实际的数据告诉你，你要长多胖才能真正防弹。
如上图所示，这个就是实验中子弹穿越凝胶时的情形。科学家首先用下面右边的装置模拟枪支，发射左边的弹珠为子弹：
Molecular Gastronomy
in Do you like to cook?, on January 17, 2007
Kitchen Chemistry Vol. 1 - Water, Water, Everywhere
Nope, I'm not turning into a Ferran Adria-wannabe here. Just putting together my teenager's Chemistry curriculum for high school. She's d...