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The approach could be used for timber, bamboo, and other organic things that suffer residual stress, helping engineers design safer structures.

After carrots are cut, they tend to bend along the axis that they were sliced—a mechanical property known as “residual stress.”

"These results provide a new pathway to design desirable residual stress states and property distributions within additive manufacturing components by using process controls to improve nonuniform spatial and temporal variations of thermal gradients around key phase transformation temperatures," the authors write.

It's unclear if residual stress from the protests or harassment contributed to the suicides, but Johnson said many activists feel a sense of hopelessness.

It’s unclear if residual stress from the protests or harassment contributed to the suicides, but Johnson said many activists feel a sense of hopelessness.