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What Is Rust?

What we call “rust” scientists call “oxidation.” It’s what happens when metal are exposed to oxygen for long periods of time. Eventually, the oxygen molecules “bond” with the metal molecules, creating a new compound called oxide. The metal becomes weaker. Rust-encrusted iron or steel is called iron...

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What Is Urea?

Urea is a waste compound; in fact, it’s part of urine and even sweat. The body produces it each time the liver breaks down amino acids and protein. The urea helps excrete the excess nitrogen. It is highly efficient at this, being very soluble. The typical human being produces an average of 30 grams...

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What Are Gizzards?

Gizzards are actually stomachs – or actually, the second stomach of birds. Since birds don’t have sharp teeth, they need to break down their food with small stones that they ingest and then store in their gizzard. Gizzards are used in cooking, and is grouped along with beef tripe and pork intestines...

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Examples of Psychological Projection in Both Genders

In psychology, projection is the act of assuming that other people see the world in the same way that you see the world. An example of projection would be a Christian who assumes that everyone should see God in a sunset or recognize the authority of the Bible. Some of the most interesting cases...

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What Are Some Differences Between Plant & Animal Cells?

Though there are some similarities especially in structural elements, plant and animal cells do differ especially in functions. Animal and plant cells both have cytoplasm, cell membrane and a nucleus. The cell walls of plants are made up of cellulose. Cellulose allows high pressure to build up...

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What Is Capillary Bed?

The capillary bed is an interlaced network of capillaries that services an organ. The network size of the capillary bed depends on how active the particular organ is. Usually, the more active organs require more nutrients and produce more waste products. Two kinds of vessels make up the capillary...

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Who Was Erik Erikson?

Erik Erikson was one of the well-known psychologists in the modern times whose work focused on the stages of development of a child into adulthood. These stages consists of crisis that individuals should overcome for them not to become fixated in one stage. If a person is fixated, the crisis in...

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What Is IGF-1?

IGF-1 is an acronym meaning, Insulin-like growth factor. It is a hormone produced by the human body, promoting growth and promoting cell vitality. IGF-1 has also been observed in birds, fish, and mammals. Most of the time IGF-1 will be created and released by the liver as a response to the growth...

10 Scientific Expeditions That Were Doomed From the Start

10 Scientific Expeditions That Were Doomed From the Start

The road to scientific advancement is never easy. Behind every great discovery or new piece of knowledge lies many hours of toil, labor, and in some cases, danger – not least when the pursuit of scientific knowledge requires journeying into the wild, into the skies or across the sea. Considering...

10 Evolutionary Approaches to Psychology and the Mind

10 Evolutionary Approaches to Psychology and the Mind

The theory of evolution has transformed every discipline it has touched. One of the biggest impacts has been in psychology and philosophy of mind where the mind has gone from being an immaterial substance, to the operation of the brain. Now scientists studying the mind (as well as mental problems)...