某种压电材料？

beta1

非常好看，视频：

http://link.brightcove.com/servi ... 205/bctid1419758473

不过这个视频声音和画面不同步。

不晓得是什么原理，那块透明的玻璃状东西可能是一种有压电效应的材料，比如某种石英、电气石、特殊的陶瓷或者塑料？介绍这个视频的文字中似乎有塑料一词，谁给翻译下 ^_^ ：

Trap Lightning in a Block : Video From Popular Science Mag.
Lightning Trigger: A Lichtenberg figure being created by a tap from a nail. In just a few hundred nanoseconds, electrons trapped in plastic exit suddenly as a bright, branching spark. You can buy the resulting figures.

链接：http://digg.com/general_sciences ... Popular_Science_Mag

dragonzkzk

嘿嘿。。是有点奇妙哟！