Stockholm University

For decades, inventors have pursued the concept of adding "smell-o-vision" to movies or TV shows. Swedish scientists have now created such a system for use in VR gaming, and it could actually help people regain their lost sense of smell.

Not only are most thermoset resins made from non-renewable sources, but they're also hard to recycle. Scientists have set about addressing those problems, by developing a new lignin-based, thermoset-like material that can be reused several times.