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What is bauxite used for?

A leading producer of bauxite in the United States is Arkansas, which has a town named after the mineral. Other producing states include Alabama, Georgia, Mississippi, Tennessee and Virginia. Bauxite was named after Les Baux, the French town where bauxite was first discovered. In 2009, Australia produced over 40 percent of world's bauxite. It is typically extracted from strip mining because bauxite is usually found near the surface or terrain.

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What is the best way to destroy magnetic tapes?

Data on magnetic tapes can be effectively destroyed by degaussing or overwriting. In degaussing, an alternate magnetic field is applied to the data, resulting in erasure of the data. In overwriting, each area of the magnetic tape is overwritten many times with alternate data and patterns.\nMagnetic tapes can also be physically destroyed so that data is unrecoverable by shredding, in which the tape itself is torn to small bits, or by smelting, in which the tape is subjected to high temperatures so that it either loses its magnetism or physically melts.

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What are the differences between the teeth of a carnivore and an herbivore?

A carnivore's entire mouth is designed to tear meat from bone so that the eater receives as much nutrition as possible from feeding. The jaws of a carnivore move up and down in an almost completely vertical motion, and its teeth are long, pointed and sharp. The fact that a carnivore's mouth is designed for quick ripping rather than grinding is mirrored by the contents of a carnivore's stomach, which uses enzymes about 10 times as acidic as that of a human's to digest food. The stronger acid is necessary because a carnivore's teeth do not nearly do as much grinding as a..

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What is the difference between wavelength and frequency?

Calculating both properties uses a simple formula. The wavelength equals the velocity (v) times the period (T) of the wave. The period is the time between individual waves. The frequency can be substituted for the period of the wave by inverting the period figure (1/T). The relationship between wavelength and frequency is the formula velocity equals frequency times wavelength, which means frequency is velocity divided by the wavelength, and the wavelength is velocity divided by frequency. This is called an inverse relationship.\nAs an example of this formula, imagine a wavelength of 2 feet tra..

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Who is the founder of modern chemistry?

Other candidates for the title are John Dalton, Robert Boyle, Jābir ibn Hayyān and Jöns Jacob Berzelius. Boyle was the first to differentiate between alchemy and chemistry, Dalton established the first version of the atomic theory and Berzelius compiled an accurate table of atomic weights of the known atoms. The Persian Jābir ibn Hayyān applied scientific principles to alchemy.

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Where do earthquakes occur most often?

Earthquakes occur when the Earth's plates move and rub against or bump into each other. Quakes occur most frequently along the edges of plates, but they are also common along faults, which can be far from the edge of a plate. Faults are cracks where smaller sections of the plate move against each other. Cracks may be defined as normal, reverse or strike-slip faults. One of the most well-known faults, the San Andreas Fault, is a strike-slip fault.

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What is the formula for calculating the board feet needed for a wood project?

If the length is in feet, use the following formula: width in inches times length in feet times thickness in inches divided by 12.\nBecause hardwoods come in different sizes, lumber yards use the board foot as a standard unit of measurement and pricing. In contrast, softwoods are cut to consistent sizes, known as dimensional lumber.

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How many grams make a kilogram?

The metric system is the measurement standard used in engineering and most scientific disciplines. The system is based on measurements for:\n\nMass — grams\nLength — meters\nVolume — liters\nTemperature — degrees Celsius\n\n\n\nAmounts are expressed in fractions or multiples of 10 and identified by adding a standard set of prefixes to the base unit. In measuring mass, some units for fractions of a gram are:\n\nNanogram = 1,000,000,000th of a gram\nMicrogram = 1,000,000th of a gram\nMilligram = 1,000th of a gram\nCentigram = 100th of a gram\nDecigram = 10th of a gram\n\n\n\nSome units f..

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What are examples of facilitated diffusion?

Diffusion is movement of molecules across a membrane. There are three main types of diffusion: simple, channel and facilitated types. Particles normally move from areas of high concentration to areas of low concentration along the concentration gradient. Prokaryotic cells demonstrate simple diffusion, whereas facilitated diffusion only happens in more complex eukaryotic cells.Simple diffusion requires no energy and happens linearly. The more particles added to the solution, the higher the concentration becomes. Channel diffusion involves proteins letting molecules through a membrane.In a facil..

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How many hurricanes have hit Houston?

In 2008, Hurricane Ike heavily impacted the Texas coast as a Category 2 storm, killing 20 people and causing $27.8 billion in damage. The National Weather Service explains that the neighboring towns of Crystal Beach, Gilchrist and High Island were almost completely destroyed by the large storm surge and high winds. Ike was the last storm of hurricane strength to strike the Houston area directly.

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