How to break a car window with something smaller than a fingernail.
Posted Oct 24, 2014, 10:46 PM UTC
46
Posted Oct 24, 2014, 10:46 PM UTC
Now this is science.
What? Why?
The porcelain in spark plug is harder than the glass. He goes into it a little in part 2 https://www.youtube.com/watch?v=llu-ckEe5cQ
wouldn't that mean rocks can break the glass as well some rocks at the very least. Doesn't seem like good rep for off road cars.
You won't take rocks to the window in most offroading.
[deleted]
http://en.wikipedia.org/wiki/Ninja_rocks