What’s happening when a match is lit? From Answers.com:
Matches contain sulfur, glass powder, and an oxidizing agent as the components in the match head. When you strike a match, the friction due to the particles of glass powder rubbing together generates enough heat to convert some of the red phosphorous to white phosphorous, which burns in the presence of oxygen gas. The heat from the friction also causes the oxidizing agent to produce oxygen gas, igniting the small amount of white phosphorous. Once ignited, the oxygen gas fuels the flame while the rest of the sulfur catches on fire. Of course, this entire process happens in a fraction of a second.
Why do birds often fly in a “V” shape formation? Researchers at the UK’s Royal Veterinary College have gathered data from individual ibises in a migratory flock to study why this pattern is so popular: their relative position and wing flap timing gives them extra lift from the upward motion of air created by the bird ahead of them.
In 2011, as part of a reintroduction programme, captive-bred ibises following an ultralight aircraft to their wintering grounds arranged themselves in the shape of a V. Data loggers on their backs captured every position and wing flap, yielding the most compelling experimental evidence yet that birds exploit the aerodynamics of the familiar formation to conserve energy.
Meet Eben Bayer, the co-founder of Ecovative Designs. In 2007, Bayer and co-founder Gavin McIntyre developed the idea of combining mycelium from growing mushrooms with local crop waste to make a compostablebiomaterial. Their goal: use it for packaging, insulation, shoes,fiberboard for furniture, and other products, thereby reducing or replacing non-biodegradable synthetic materials and plastics that can leach chemicals.