A Knotty Problem Solved

byHasibul Hasan — 0
Scientists are studying how some knots perform better than others, like this figure-eight knot tied using a special fiber that changes color under strain. Regions of high strain (green, yellow) can be easily distinguished from sections of the knot at low strain (red, orange).

We know that some knots hold better than others, but the why of it hasn't been so clear. Special fibers that change color under strain are providing some answers.

(Image credit: Joseph Sandt)



from News : NPR https://ift.tt/2ZVJPsl
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