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What is glacier and how does it move?

Glaciers form when show piles up in mountain hollows, called cirques. The snow is gradually compacted into a white substance, halfway between snow and ice. As the pressure increases, the ice crystals become closely interlocked, while water, seeping down from above, refreezes and binds the crystals together. Finally, the compacted snow is pressed into clear blue ice. Exactly how ice …

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What is genetic drift?

The random changes in gene frequencies occurring by chance and not under the control of natural selection are called genetic drift or random genetic drift or sampling error. This theory was advocated by geneticist Sewall Wright in 1930. It explains the change in gene frequency. It is caused due to sampling error. A new generation arises from a sample of …

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What is gene doping?

Gene doping involves modifying an athlete’s DNA, or having him inject or inhale foreign DNA, to make him bigger, stronger and faster. It’s harder to detect than most drugs, which makes it all the more desired by cheaters looking to prosper. It is suspected that gene doping is already happening and is being done unethically and with immature technology, thereby, …

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What is gas flaring and why is it done?

In chemical factories, oil refineries, oil wells, rigs and landfills, gaseous waste products and sometimes even non-waste gases produced are routed to an elevated vertical chimney called a gas flare and burnt off at its tip. This is called gas flaring. Waste gases are subjected to such a process either because the gases are waste or it is difficult to …

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What is fleur-de-lis?

Fleur-de-lis (or fleur-de-lys) is a stylized lily (in French, fleur means flower, and lis means lily) or iris that is used as a decorative design or symbol. It may be “political, dynastic, artistic, emblematic, and symbolic”, especially in heraldry. While the fleur-de-lis has appeared on countless European coats of arms and flags over the centuries, it is particularly associated with …

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What is ESP?

ESP means Extra Sensory Perception. Regular sensory perception is the way we see the world through our five senses – sight, hearing, smell, taste and touch. But “extra” goes beyond into the realm of seeing the unseen. That could looking through walls, hearing the voices of dead people, or getting a strong feeling about something that is going to happen …

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