While state-changing polymers have been around for a while, it's now in a form that everyone can use — an iPhone case. d3o is a gel-like material that transforms into a more solid material upon impact, and Tech21 is using it in a protective, attractive skin. Cool.
According to the manufacturer, the molecules at rest move freely in a soft and flexible gel, but when impacted, the molecules "lock together to spread and absorb the force," increasing protection up to 134% compared to other cases.
What do you think: should they make egg-cartons out of the same material?