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What is lateral displacement of light?

Scientists measure the angle the light changes using a value called the refractive index. The refractive index of air is 1.00, while the refractive index of water is 1.33.\nSir Isaac Newton receives credit with the discovery of the refractive index, although his work treats it as a ratio instead of a single number. His 1730 book "Optics" refers to the concept as the "proportion of the sines of incidence and refraction."\nLight does not always pass through a medium with a lateral movement. If the angle with which it strikes the mediums is too great, the light reflects instead of bending. Materi..

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What is an artificial ecosystem?

A natural ecosystem consists of a diverse species of plants and animals that significantly interact with the nonliving things that are also present in the system. It is naturally sustainable and does not require the intervention of humans to survive. A forest and a pond are both examples of a natural ecosystem. An artificial ecosystem, however, cannot thrive productively without human supervision.\nHumans need to tend to each component of an artificial ecosystem to make it a sustainable environment. A paddy field requires fertilizers and a consistent supply of water in order to grow crops. Whe..

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How many cubic feet are there in a 20-foot container?

According to Sea Plus, a standard 20-foot shipping container measures 20 feet by 7 feet 9 1/4 inches by 8 feet 6 inches. Cubic feet is calculated by multiplying the total square feet by the height. Square feet is a calculation of width times length. Therefore, essentially, cubic feet is found my multiplying length X width X height. Since the width and height of the container are not even numbers, it is necessary to determine what percentage of a foot the remaining inches are. Once the total number of feet is determined, the numbers are multiplied to find the cubic feet.

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What are proteins broken down into?

Protein digestion begins in the stomach, where the large protein molecules are broken down into smaller polypeptides. This is caused by the action of the stomach's hydrochloric acid and enzymes called proteases. Many proteases are made in the pancreas, including trypsin, pancreatin and chymotrypsin. The breakdown of proteins during digestion is called proteolysis. This allows the body to utilize the amino acids that it can't manufacture.\nThe essential amino acids that result from proteolysis are leucine, histidine, lysine, valine, phenylalanine, threonine, tryptophan, methionine an..

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What is the element with the greatest electronegativity?

Electronegativity is the measure of an atom's ability to attract an electron from another atom. Highly electronegative elements are very reactive due to this tendency to attract electrons. Non-metals are more likely to be electronegative than metals.\nElements with very low electronegativity values are more likely to donate electrons to other atoms, and are equally reactive due to this tendency. Francium, cesium, barium and sodium are all elements with very low electronegativity. The least electronegative elements are also known as electropositive elements.

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What are some fun facts about Saturn?

Modern technology has allowed humans to discover the complexity of Saturn's rings. There are seven rings that circle the planet at different rates, and they're made largely of ice. They are braided and have rings within rings or spokes within the rings that orbit Saturn at a different speed than the rest of the material. They can also form ridges and bumps that can be more than 2 miles high. There are two moons that orbit the planet in the Encke and Keeler gaps of the rings.\nThe rings reach about 175,000 miles into space, but on average, they're only about 3,200 feet thick. The..

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What two colors make green?

About.com suggests starting with yellow and adding small amounts of blue until you get the desired shade of green. This is because it takes less of the darker color to change the mixture. It would take adding much more yellow to blue to get the same shade of green.\nThe shades of blue and yellow are another determining factor. When mixing colored lights instead of paint, it is important to note that green, along with red and blue, is one of the three primary colors.

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Are bottlenose dolphins endangered?

While it is illegal to target bottlenose dolphins, many ships end up inadvertently killing them with their nets. Dolphins are frequently caught in commercial fishing nets, causing them to become entangled and drown as they are unable to reach the surface for a breath. The increased amount of boat traffic in the areas frequented by bottlenose dolphins also represents a threat, as the boats may strike and kill the dolphins.\nHabitat destruction occurs in many forms, but all present problems for dolphins. Chemicals that are pumped into the ocean may sicken dolphins or their prey, while floating d..

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How are images of the lungs taken?

The primary function of the lungs in the respiratory system is to facilitate the exchange of oxygen and carbon dioxide in the body. The manifestation of certain symptoms, including increased heart rates, difficulty in breathing, reduced oxygen supply and upper body discomfort, is typically associated with masses of clotted blood, air spaces or fatty deposits within the pulmonary blood vessels. A lung scan is normally recommended to pinpoint the exact location of the embolus.Lung scans are generally classified into two types: ventilation and perfusion. A ventilation scan involves inhalation of ..

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Is CH4 ionic or covalent?

Some properties of covalent bonds are that they tend to occur between two non-metal atoms, have low boiling and melting points and low polarity. At room temperature, these covalent molecules are either gaseous or liquids. For example, methane is a gas.In contrast, ionic bonds tend to be present in solid compounds. Ionic bonds occur between a metal and non-metal. Some characteristics of ionic bonds in compounds are that they exhibit high melting and boiling points.

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