Empiricism, the philosophical doctrine that emphasizes the role of experience in human knowledge and minimizes the role of reason. The term “empiricism” is derived from the Greek word empeiria, meaning trial or experience. Empiricism as a doctrine is opposed to rationalism. To understand the doctrine, it is important to distinguish two central theories that are [...]

Difference Between Acids and Bases Acids Just what is an acid? To go beyond describing an acid’s properties to understanding its chemistry, we need to briefly review the basic structure of the atom and its binding forces. The hydrogen atom, with only one proton and one electron, is the simplest of all the atoms. Suppose [...]

Difference Between Yams And  Sweet Potatoes Yam, the common name for plants of the genus Dioscorea of the family Dioscoreaceae (called the yam family), or for their tubers. In the United States certain varieties of sweet potato are incorrectly called yams. True yams, of which about 600 species are known, are found throughout tropical and [...]

Difference Between Wheat And Barley Wheat, a grass that is the most widely grown of all the cereal grains. Wheat products are the principal cereal foods for an overwhelming majority of the world’s inhabitants. In the United States, for example, wheat-based foods make up about 24% of the average diet. Wheat (genus Triticum) belongs to [...]

Difference Between Waste Treatment- Primary And Secondary And Tertiary Disposal Sewage-treatment plants use a series of steps to remove any biological and chemical contaminants that are a risk to human health or the environment. Such plants eliminate final traces of suspended solids; halt the undesirable growth of algae; reduce nutrient content; and remove undesirable taste, [...]

Difference Between Strain And Sprain Strain Strain, an injury to a muscle or the attachment of a muscle or tendon caused by excessive stretching, pulling, or shearing, but not tearing. It is generally a minor injury and heals without treatment other than rest and sometimes partial immobilization with an elastic bandage or similar type of [...]

Difference Between Toe And Foot TOE A toe is any of five digits of the human foot. The toes aid in balance and walking, especially the first, or big, toe. As in the fingers of the hand, the skeleton of each toe consists of three small bones known as phalanges; the big toe is the [...]

Difference Between The Universe And The Multiverse The universe is not the static and eternal place that astronomers believed it to be only a century ago; rather, it is active, dynamic, and ever-changing. Galaxies collide, black holes devour matter, stars are born of interstellar debris, and stars die in unbelievably violent explosions. Human beings are [...]

Difference Between Optical Discs And Magnetic Tapes Videodiscs can be mass-produced like phonograph records and are therefore less expensive than videocassettes for prerecorded programs such as movies and music. In addition, they offer superior sound fidelity. Since there are no home recording systems for videodiscs, however, they cannot be used for recording television programs at [...]

Although all fishes are primarily aquatic, cold-blooded, backboned animals, there are fundamental differences among them. Jawless Fishes One class of fishes—the class Cyclostomi—is best known from the fossils of its extinct members that lived from Ordovician to Devonian times, some 500 to 400 million years ago. The few living cyclostomes—lampreys and hagfishes—are mostly marine. Cyclostomes [...]