Skepticurious Interesting & unusual things I find.

28May/100

Shattering car windows with ceramic?!

Today I learned that car windows can be difficult to break with a hammer while shockingly easy to break by throwing a tiny piece of ceramic against them (such as you can get from breaking the ceramic off a used spark plug). Apparently it has something to do with the incredible "hardness" of ceramic. I vaguely remember something about that from fifth grade science class...

^Q

Here is showing how hard it can be with a normal object:

And how easy it is with ceramic.