Recommended for you. Chemists discover new way to harness energy from ammonia 10 hours ago. Study shines a light into 'black holes' in the Arabidopsis genome 10 hours ago. Load comments 0. Let us know if there is a problem with our content. Your message to the editors. Your email only if you want to be contacted back. Send Feedback. Thank you for taking time to provide your feedback to the editors. E-mail the story What makes glass break?
Your friend's email. Your email. I would like to subscribe to Science X Newsletter. Learn more. Your name. Note Your email address is used only to let the recipient know who sent the email. In recent years, though, researchers have looked more closely at broken glass and noticed that its fracture surface is rougher than they had previously thought.
Using an atomic force microscope AFM , researchers examined fractured glass at the nanometer scale and found rough, metal-like surfaces. That prompted some to wonder whether the ways in which glass and metal break are really so different after all. The researchers placed a 4 x 4 x millimeter block of glass vertically inside a chamber and slowly squeezed on the small top and bottom faces with a compression machine.
A one-millimeter-diameter hole went horizontally through the middle of the block. The squeezing pressure caused it to bow apart in the middle, and cracks slowly propagated vertically up and down from the hole.
The team used an atomic force microscope AFM to watch one resulting crack as it developed. More on Sci-Fi Visions. From Our Partners. Yesterday on futurism. Best Gifts For Gamers in Wednesday on futurism.
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ISBN Napier and Blakely. Rupert, Michael L. ISSN Swain M. Tempered glass. Museum of Fine Arts, Boston. Back to List of Lexicon Terms. Log in. Navigation Main Page. Community portal. Current events.
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