If you had a time lapse camera with a microscope view, you would see the glass wobbling. Then of course getting real anal about it, you would have to question even calling it spontaneous when it is having heat transfer and thus energy transfer flowing through the glass via the air and creating thermal cycles or movement in the glass. With glass, the fact that it flows downward at a very very slow rate, certainly has some effect and would influence accumulated stresses, it isnt required or the sole reason glass spontaneously shatters because ceramic does it too. I never seen glass spontaneously shatter, but thinking about it I have seen a ceramic bowl and a ceramic plate shatter. Your shower door may have had some similar "invisible" damage, a long time ago. Standard automotive glass has a hardness of 5H. Increases Hardness of Windshield to 9H When viewed under a miscroscope a glass surface is not smooth.
#Glass shatter free#
ShatterX is completely bubble free application leaving no smear marks. I guess a micro-crack started when I dropped it, and took 5 years to grow big enough to matter. ShatterX Liquid greatly enhances your windshield against impact, small rock chips, minor cracks and surface scratches. Imagine slicing through the sides and bottom of the mug vertically through the centre, 90 degrees away from the handle.
#Glass shatter cracked#
One day, about 5 years later, I filled the same mug with water (at room temperature, not hot or cold), there was a "ping", and the mug instantly cracked into two pieces. The floor was carpeted, and there was no obvious damage to the mug. More Buying Choices 9. I once dropped an empty ceramic coffee mug on the floor. WElinks Stainless Steel Red Wine Glass Metal Stemmed Wine Glass Shatter Proof White Red Wine Cocktail Glasses Unbreakable BPA Free Goblets Juice Drink Champagne Goblet Party Barware Kitchen Tools.
#Glass shatter crack#
Once the crack starts to propagate, it goes fast. Any help or suggestions would be appreciated, thanks!įor a brittle material, the initial flaw that starts a crack can often be too small to see. More facts.his mom used CLR on the glass to clean it three weeks before the incident. His guess was that a sudden pressure change from opening a door might have bent the glass slighlty enough to cause it to crack and send small pieces on the floor. We're really curious to find out what happened considering that we're both really into physics. The water wasn't on and no apparent forces were acting on it. Most of the windows in the house were open. The slow-motion footage is shot at 187,500 frames per second (for reference, the standard frame. The facts that I know are that it was like about room temperature in there. In the video below, Free breaks a few different glasses so you can see how they shatter differently. It began from the middle and worked its way towards the edges.
He looked at it and watched the cracks get longer right in front of him. As it turned out, a pane of glass in the bathroom shattered. He was on the phone when his mom told him to hang up and look at this. The house has been around for a little while.nothing too long. I was recenlty on the phone with my friend who moved into a new house.
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