I’m working on an EPSRC project with 4 universities and multiple industry partners that amazes me for two reasons.
It’s for ‘smart’ materials – specifically concrete. Concrete’s not actually that strong, it’s the steel in it that gives strength, but steel rusts. So if concrete cracks (and in most cases it will, eventually) and moisture gets in to the interior it will freeze and thaw and crack worse, until it reaches the steel which rusts, and expands, and cracks worse. So bridges and tunnels have to undergo the civil engineering equivalent of dentistry, drill out the decay, patch it up, etc. Costly, dangerous, and in some areas (undersea, nuclear, etc.) almost impossible.
So we are working on self sensing and self healing materials, that sit dormant until a crack starts (at microscopic scale) at which they can sense the crack, and inform the highways agency or whoever (avoids need to inspect as frequently in case); but then they are filled with microencapsulated material (our part) that ruptures as the crack propogates through it which releases a catalyst which enables the concrete to bridge over the gap.
It’s real Tomorrows World stuff, but it actually works on a lab scale. And that’s the second part that amazes me – we’re working on stuff that might be 20 years before it is in the market (the industry currently isn’t a ‘take a punt’ mindset) so many on the project won’t see the fruition – and the expected lifespan in 80-90 years, so it’s pretty likely none of us will actually find out if it worked or not.