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Tuples

In mathematics, a tuple or a sequence is a list of objects arranged in an order. Such a list may have repeated objects but the order is more important. Such sequences or tuples are denoted as ( t1, t2, t3, …., tn ) where tn is the nth element of the list. Below are a...
Relations & Sets

Relations & Sets

A Relation from set A to set B is defined as a set of ordered pairs formed from the elements of set A and B. In other words, a relation is a subset of the cartesian product of sets A and B. The subset is derived by establishing predicate filter(s) or criteria stating...

Chemical Fertilizer vs. Organic Fertilizer

A popular topic among agriculture specialists and home gardeners these days is the furore on organic fertilizer vs. chemical fertilizer.   Now each fertilizer certainly has its pros and cons, but before we delve deeper into that, let us first make a few...

Liquid Organic Fertilizer

Using organic fertilizers is a widely accepted practice in the agricultural industry. Farmers use them to cultivate their fields and row crops, winemakers utilize them for growing grapes, and horticulturists apply a liberal dose of these during the landscaping of...

Longest Rivers of the World

RANKRiverRegionLength (KM/MILES)1The NileEast and North Africa(7,088 KM / 4,404 MILES)2AmazonSouth America (Peru, Colombia, Brazil )(6,992 KM / 4,345 MILES)3YangtzeChina(6,418 KM / 3,988 MILES)4MississippiUSA & Canada(6,275 KM / 3,902 MILES)5Yenisey...