Thundereggs look like regular rocks from the outside, but contain intricate and colorful mineral patterns inside — often made ...

For years, scientists have been trying to understand the mechanisms behind the destruction of Earth’s cratons, but results have remained elusive. Now, in a Nature Geoscience study, researchers ...

1. Introduction -- 2. Stress -- 3. Displacement and strain -- 4. Relation between stress and strain -- 5. Loading of brittle rock to failure -- 6. Stress concentration -- 7. Theories of brittle ...