rock-vs spark plug.mpg

This video shows a rock-vs-a small broken piece of ceramic from a spark plug thrown against a car window. We heard this works and had to try it. It did work. It works because the aluminum oxide ceramic is much harder than glass. Aluminum oxide ceramic rates a 9 on the Mohs scale of hardness. Diamond rates a 10. glass rates 6.5, and iron rates a 4.5. This is video is for training only.

Category:

Autos & Vehicles

Tags:

• Fire
• rescue
• police
• ambulance
• forced entry
• cars

[dva511]

LOL nice, I hope to see more response videos soon =]

[MrDip02]

@tim9355 no it's because the ceramic is tougher than the glass -_- glass is 5 on the scale aluminum oxide is 9 diamond is 10

[kurnellampdwarf]

Wow, i actually didn't know that. That was pretty informative.

[AllrounderNo1]

Nice^^

[04wheelerd]

@dva511 What he said!

[Korbs21]

haha, awesome :D

[tim9355]

The electric charge in the ceramic generated by the spark plug while it was in use makes it react with the windows coating to cause the spidering/break.

[GMSamuelRhine]

wow imagine if a tire ran over that and threw that at you on the highway

[KingG]

So that's who broke my car window!

[KlingonSpider]

hahahaha!