For two thousand years, there’s been a mystery in material science about how the Romans managed to build the Pantheon out of non-reinforced concrete. It remains standing, while our concrete with steel rebar struggles to last a century. This mystery was recently solved by a team out of MIT and their paper was just published in Science.

The implications are staggering. They can make stronger, self healing concrete. It can be lower cost and is a very easy change to existing production operations. Even more exciting, they can radically reduce the carbon emissions from making cement, which is the largest offender of all construction materials.
We are their first investors.