The Young Legend Blog

ANTS DO CONSTRUCTION WITHOUT COORDINATION.. Leaf-cutter ants build super highways to transfer food and building material hunderds of metres without communicating with each other, scientist claimed that, in finding that could prompt rethink about how some insect communities organise themselves. It had long been thought that the ants organise megaprojects by communicating with one another, assigning specialist to remove debris. But, each ant seems to act alone, solving environmental problems such as removing as they are encountered.

Why do substances burn with or without a flame? Have you ever observed either a coal or a wood fire? If not, the next time you get a chance, take close note of what happens when the wood or coal starts to burn. You have seen above that a candle or the LPG in the gas stove burns with a flame. However, you will observe the coal or charcoal in an ‘angithi’ sometimes just glows red and gives out heat without a flame. This is because a flame is only produced when gaseous substances burn. When wood or charcoal is ignited, the volatile substances present vapourise and burn with a flame in the beginning. A luminous flame is seen when the atoms of the gaseous substance are heated and start to glow. The colour produced by each element is a characteristic property of that element. Try and heat a copper wire in the flame of a gas stove and observe its colour. You have seen that incomplete combustion gives soot which is carbon. On this basis, what will you attribute the yellow colour of a ca