A broken ceramic piece from a spark plug can easily break a car window. Why does it work so well when it weighs so little and is thrown at a slow...
How and why do spark plug pieces break car windows so easily? I found this article pretty easily, ... wouldn't, say, a small sharp rock work just as well? I was under the impression that you could actually just throw the spark plug piece to break the window, and not have to wield it with your hand. If that's true, then somehow it requires far ...
Ninja rocks are broken shards of spark plugs that are formed by smashing the ceramic portion of the spark plug with a hammer or other large object. Since they can quickly and quietly fracture the glass side windows on most cars, ninja rocks have been used in "smash-and-grab" auto burglaries since at least 1995.
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In order to break a car window's tempered glass, the porcelain insulator inside of a spark plug can be used. Unglazed porcelain is rated 7 on the Mohs scale of mineral harness, while glass is rated 5.5. To shatter a car window with a spark plug: Obtain the spark plug's insulator; Spark plugs generally use a porcelain insulator.
Edit: Several people have suggested that the charge of the glass and the ceramic from the spark plug create a spark that breaks the glass in an explosive way. This is a myth. The only charge of any significance here is the one you'll pay to replace your window.
Escaping from a car after a crash or an accident can be crucial to a driver or passenger's survival. I look at the top 3 best emergency window breakers for cars.
If you're stuck in a sinking car, or outside your car and desperately need to get inside, you have plenty of ways to break that window, but one of the best might be right there in your car anyway ...
Can the ceramic tip off a spark plug actually break glass well watch and see for yourself. Plus bonus footage after credits Don't Forget to Subscribe today for more fact or fiction, diy ,how to ...
How does a spark plug break glass? I heard from a number of people, and on TV that if you strike a spark plug on a glass window (ie. a car window) it will shatter. How does this happen? Follow . 6 answers 6. Report Abuse. Are you sure you want to delete this answer? Yes No.