Chemists at Cornell University has a solution in the form of an extremely sensitive polymer which is capable of detecting Improvised Explosive Devices, or IEDs in short. This polymer is capable of determining certain explosives even if it is present in the air. It does so by absorbing light and transporting the resulting energy throughout its entire structure, where this energy is later released as light via a fluorescence process. Should the energy detect a molecule of explosive as it travels through the polymer, it will convert into heat instead of light – which leads to the polymer’s glow stopping. Now that’s a smart visual indicator of a potential explosive in the area, no? Thing is, you will never be able to replace the kind of bond that you would have with your dog, and taking polymers out for walks is no fun.