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What are some uses of polyester?

The fiberglass industry uses unsaturated polyester, or cured polyester, in manufacturing fiberglass-reinforced polyester resins, which results in a thermosetting plastic that does not melt on heating. Many plastic bottle manufacturers are also using polyester as their main raw product due to its recyclability. Sometimes referred to as PET, these recyclable bottles are slowly gaining popularity because they are cheaper to produce and pose less risk to the environment.

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What were Gregor Mendel's accomplishments?

Mendel served concurrently as a monk, gardener and scientist. When not attending to his religious duties or tending to his own garden, Mendel spent his spare time in his laboratory experimenting on the transfer of genes. He used peas as subjects because they were readily available, and proved to be much more practical items to study than humans and animals. Mendel ultimately discovered that traits pass down through generations as dominant and recessive genes; his works generated a flurry of activity in the field of genetics and heredity, as fellow researchers and scientists raced to replicate ..

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What are binary ionic compounds?

The positive charge is called the cation while the negative charge is called the anion. When naming a binary ionic compound, the cation is named first followed by the anion. The charge of the cation must be mentioned in Roman numerals in parenthesis. Hence, FeCl3 is named as iron (III) chloride and FeCl2 is iron (II) chloride. Copper forms two positive ions, Cu2+ and CU3+. Thus, copper (III) chloride is a binary ionic compound. Such compounds are referred to as Type II binary ionic compounds.\nUnlike Type II binary ionic compounds, Type I binary ionic compounds have cations that have one charg..

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What units are used to measure air pressure?

High air pressure in excess of 29.92 inHg, or 1013.25 mb, indicates a high concentration of air particles at the surface. In meteorology, high air pressure systems are associated with clear weather conditions. Low air pressure, or air pressure below 29.92 inHg, or 1013.25 mb, indicates the lifting of air particles away from the surface. In meteorology, low air pressure systems are associated with poor weather conditions. For example, in the eye wall of a hurricane, the air pressure can dip to as low as 990 mb.

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Can you provide an example of a phenotype and a genotype?

A person's genotype is the special allele combination that is in his or her genetic make-up. Alleles are various versions of genes. A person's hair color and eye color are other examples of genotype. A person's phenotype refers to all the final observable physical features. These features are the result of the interaction between the person's genotype and the environment while he or she was growing up or developing. Weight is another example of a phenotype.

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Where can you read about BioTrust complaints?

Around five complaints that are related to guarantee or warranty and another 10 complaints that are related to problems with product or service can be found on BBB. All the 25 complaints about BioTrust were made within the past 3 years, as of February, 2015. Complaints by those who bought and used BioTrust products can be found on Reviewopedia and Diet Pills Watchdog. The complainant also included a rating from one to five stars for BioTrust on Reviewopedia.

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How are mountains formed?

The forces that form a mountain are generated far below the Earth's surface. Two of the most common forms of mountains are formed by interactions between the Earth's tectonic plates. These theoretical plates form the Earth's crust and upper mantel, and they move independently of one another. When the plates collide, one possible outcome is the formation of mountains. In the case of volcanic mountains, the collision of two plates results in melting rock that rises to the surface. This melted rock or magma breaks through to the surface and slowly builds into a mountain. In other i..

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How do you calculate work?

Calculate the forceThe force acting upon an object is equal to the mass of the object in kilograms, multiplied by the object's velocity in meters per second, divided by the amount of time it was in motion in seconds. This can be expressed as F = m(v/t). Calculate the object's displacementDisplacement is how far the force moved the object in meters. Measure the distance between the starting and stopping points of the object's movement. Find the angle between the force and the displacementTo find this value, measure the angle between the direction of the force and the direction of..

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What is the difference between renewable and nonrenewable energy?

Renewable energy sources naturally replenish themselves over a relatively brief period. More energy reaches the Earth from the sun in one year than is contained in the world's entire supply of uranium, coal, oil and natural gas, making the supply of solar energy effectively unlimited. Wind and water power result from the natural cycles of the climate and cannot be used up.\nOther sources of energy require human intervention to be renewed. Wood can be burned for fuel, but if new trees are not planted to replace those that are cut down, then the supply eventually dwindles to nothing. Simila..

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What is a good explanation of the sulfur cycle?

The amount of sulfur that enters the atmosphere in the sulfur cycle has exponentially increased throughout the years as a result of human activity. By burning fossil fuels as an energy source, human beings are increasing the amount of sulfide that enters the system. In fact, human beings are responsible for approximately one-third of all of the sulfide that enters the atmosphere via the sulfur cycle.An increase of sulfur or sulfur dioxide in the atmosphere will cause more ultraviolet rays to be absorbed. This causes the greenhouse effect, which has been speculated as the main cause of global w..

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