Fire's no match for fake wood
Scientists have created artificial wood that is water resistant and fire resistant and faster to make than natural wood. The lightweight fake wood is made of polymer resin and a pinch of chitosan, a sugar polymer derived from the shells of shrimp and crabs. It's freeze dried then heated to temperatures as high as 200C. The resulting stuff is as crush resistant as wood but not bothered by the wet or heat. Samples soaked in water and in a strong acid bath for 30 days scarcely weakened, whereas samples of balsa wood lost strength and 40 per cent of their crush resistance. The new material was also difficult to ignite and stopped burning when it was removed from the flame. (Via Scientific American)
Doggone overkill
Package must be big enough for picture of dog: "How's this for packaging?" writes Pam Sims. "The flea control pill measures just 2cm across, then there's the foil, then the cardboard box! Overkill."