I like pure organic stevia in some applications (like coffee and tea where you just need a bit), but it doesn't provide the right texture in this recipe, so it's important not to sub the maple with that without adding some other sort of liquid, which I haven't experimented with. (heathermcclees.com)
In 1903 Edouard Benedictus, a French scientist, dropped a glass flask that had been filled with a solution of cellulose nitrate, a sort of liquid plastic. (businessinsider.com)