Been seeing a lot of videos about them breaking glasses in an instant, but i’m clueless to this sorcery. The same glasses take say a conventional hammers/crowbars/screwdrivers multiple tries to break. There’s no source telling how it works and i’ve personally never seen this thing in real life. Why do these hammers have such a small tip and how does it breaks glasses with ust a mild pressure on the window? I get the seatbelt cutting part, but the hammer part is a bit baffling.
Is “f=ma” the right answer to this concept?
Some unusual designs they’re coming in now (tubes) are beyond my comprehension.
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force can be applied slowly or quickly, over a small space or large.
Think of it like laying on a bed of nails. If you lay on a single nail, you’d be in for a bad time. Laying across nails, it equally distributes the weight. For your situation, you want that single point. Also thing of how much force it might take to puncture your skin with a sewing needle vs kabob skewer.
This then brings into question the material properties of glass/windows. They are strong, but brittle. By applying a force to a very small area will compromise the strength easily and therefore break the window.
Lastly, practicality. Sure a sledgehammer can break a car window but how practical is it? they have innovated the tool you’re referencing to the point where it takes up little space, can be easy to use, and have the same intended results.
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