A closer look
Water is notoriously terrible at stopping projectiles, but if you toss in some sawdust, you suddenly have a composite material tougher than concrete. Known as pykrete, this mixture severely slows down the melting process while the wood fibers act as structural reinforcement, much like rebar. It is absurdly strong, heavily resistant to shattering, and completely cheap, proving that mixing garbage with winter can yield military-grade structural barriers.






