Thanks for the info. If have the chance sure will test....Not really what we observed bro. We tested on several intact tempered windows
We initially did think it was an impact with a jagged point, but when we fashioned a similar piece of jagged steel it didn't do anything other than bounce off, no matter how many times we threw the thing at the window.
Also, the steel ball bearings we used of similar dimensions were dense comparatively to that piece of ceramic. The latter was 'featherweight' by comparison. Since none of the ball bearings busted anything it could not have been density of material.
The thing is sparkplug ceramic has a very high hardness rating. Most literature seem to suggest this is the reason you can explode a piece of tempered glass via impact.
If you have an opportunity to try it yourself, it's actually quite an entertaining test.
---------- Post added at 07:34 PM ---------- 6 hour anti-bump limit - Previous post was at 07:33 PM ----------
Bro. FVel mention the ceramic part.....To break a window with a spark plug, must it be at which point of that spark plug to hit the
window to break? Or any part of the spark plug body that hit the window will break as well?
Didn't know such a small thing can break a window. Does it work from the inside as well?