cylonlover writes: Scientists at Harvard University have created a hydrogel that’s tough, biocompatible, self-healing, and can be repeatedly stretched to 21 times its regular length without breaking – all of which are qualities that could make it an ideal replacement for damaged cartilage in humans. Being a hydrogel, it’s composed mostly of water, although it also contains calcium ions, and a mix of two common polymers. While each of those polymers are fairly weak on their own, the results are truly impressive when they’re combined.
"Well, it don't make the sun shine, but at least it don't deepen the shit."
-- Straiter Empy, in _Riddley_Walker_ by Russell Hoban