Science & Mathematics Questions & Answers

Guano is accumulated dung or excrement and remains of seabirds, bats and seals found along certain coastal areas and caves. It’s found mainly on the coastal islands of Peru, Africa, Chile and the West Indies. It contains about 6% phosphorus, 9% nitrogen, 2% potassium and moisture. Guano is found mixed with feathers and bones and used mainly as a fertilizer. …

Grounded Theory is described as a research method in which the theory is developed from the data, rather than the other way around. That makes it an inductive approach, meaning it moves from the specific to the general. The Grounded Theory was developed by two sociologists, Barney Glaser and Anselm Strauss.

Green oil is a lubricant which is non-toxic, biodegradable, petroleum-free, and less expensive. The greenwood chain saw oil was first blended by the Green Oil Company in 1992. These days, in addition to chain saw oil, it is blended with environmentally-safe hydraulic fluids like elevator oil, greases, bicycle oils and concrete form oil.

Green Fluorescent Protein (GFP) is a naturally fluorescent protein isolated from the jellyfish Aequorea victoria. GFP is a fluorescent marker that makes possible the visualisation of protein in the cell. Cells can be stained by them and examined by fluorescence microscopy to reveal the location of a protein of interest. For example, glucocorticoid receptor protein is a transcription factor that …

Green energy, or renewable / sustainable energy, is derived from a source which meets the needs of the present without getting depleted. Green energy is looked upon as the answer to climate change and as a saviour of the world. Sources of green energy – bio-fuels, solar power, wind power, wave power, geothermal power and tidal power – have begun …

Green chemistry, also called sustainable chemistry, is a philosophy of chemical research and engineering that encourages the design of products and processes that minimize the use and generation of hazardous substances. Whereas environmental chemistry is the chemistry of the natural environment, and of pollutant chemicals in nature, green chemistry seeks to reduce and prevent pollution at its source. In 1990 …

Gradenigo, an Italian otolaryngologist from the University of Naples, described this syndrome in 1904. Painful anaesthesia in the first division of the fifth cranial nerve supplying the forehead with sixth cranial nerve palsy occurs in this syndrome. It happens as a result of a lesion at the apex of petrous temporal bone outside the dura mater. It may be due …

While many are aware of the dangers of global warming, not many know about global cooling. Scientists believe the cooling of the sun causes it. Global cooling is known for the absence of sunspot activity. According to the theory of global cooling, the sun had no sunspots between 2008 and 2009, while sunspot activity was at its peak in the …

Glass is made of naturally from a fusions of silica (sand), soda and lime. This fusion can be achieved merely by lightning striking in a place where the right ingredients happen to be adjacent to each other. When glass is made by man, other ingredients are added, such as potash, lead oxide and boric oxide. Some of these ingredients are …

Glass fiber is a mass of very fine strands of glass. When ordinary glass is spun into thin threads it is strong and bendable, unlike normal glass objects, which are brittle and break easily. These silky strands of glass can be woven into a material or massed together like cotton wool. Glass fiber does not decay or corrode. It is …