Etched glass stops cracks in their tracks
Adding wavy lines reduces material’s notorious brittleness
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/01/mr_glass.jpg?fit=860%2C460&ssl=1)
CRACK STOPPER Wavy lines etched into glass absorb energy, stopping cracks from busting through the brittle material.
M. Mirkhalaf et al/Nature Communications 2014