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Where do typhoons mostly occur?

"Typhoon" is the name for the tropical cyclones that occur in the western Pacific Ocean. They are the local equivalent of hurricanes in the Atlantic and eastern Pacific oceans. The strongest typhoons have wind speeds in excess of 200 mph. The strongest recorded was Super Typhoon Nancy in 1961. Super Typhoon Nancy had sustained winds of 215 mph at peak intensity.

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What are the four principles of natural selection?

Natural selection acknowledges the fact that members of a population are capable of producing more offspring than are needed to maintain a healthy population size. Nature controls the population's size by empowering species' best specimens to survive and reproduce.\nVariability among population members refers to differences in such traits as eye color or hair color, and it serves as natural selection's foundation. The variable traits must be heritable, which means they are passed down from one generation to the next. Differences among population members' ability to reproduc..

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What causes cells to stop dividing?

Cells age, die and are then replaced by newer cells. Apoptosis is the programmed and normal death of a cell. Normal cells are able to divide approximately 50 times before they are replaced. This process is related to the replication of DNA, which is limited. Every time the chromosomes in the cell replicate, the telomeres shorten. In the growing of new cells, telomerase replaces the lost telomeres.

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What are the benefits of sweating?

Sweating purges the body of a variety of substances, including cholesterol. Scientific studies have discovered about 60 toxins that can exit the body through the sweat glands. However, some of these substances only exist in trace amounts in sweat. In the case of excess electrolytes, such as potassium or sodium, sweating eliminates a more significant amount.\nSweating prevents the body from overheating through a process called vaporization. When sweat is on the surface of the skin, the heat radiating from the body heats the water content of the sweat, causing the water to evaporate. When evapor..

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How does fungi affect humans?

Although the majority of fungi do not cause harm to humans, those that do can have severe effects. For example, if opportunistic fungi from soil enter the wound of a person whose immune system is compromised, such as a diabetes patient, it can cause an aggressive infection. The majority of infections fungi cause are superficial, which means they occur across the skin or the hair. Examples of this include athlete's foot and ringworm.When fungi do enter the body as an infection, they can cause systemic reactions that are fatal. People who are living in households where mold is present are a..

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How do optical cables work?

An optic cable has the capability to carry a signal nearly 60 miles. When dealing with long-distance lines, equipment huts are needed at least every 60 miles to pick up and retransmit the signal. Failure to retransmit the signal results in a loss in signal strength or a distortion of the information being carried by the cable.\nCreating optical fibers inside optical cables requires heating manufactured glass to between 3,000 and 4,000 degrees Fahrenheit. Once the glass is heated, it is drawn out in strands at a rate of nearly 66 feet per second. To ensure that no breaks form while the strand i..

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How did bromine get its name?

Bromine is unique in that it is the only nonmetal element that is a liquid at room temperature. It is a red-brown color in both its liquid and solid form. Bromine is dangerous, and caution is needed when handling it. It is both volatile and mobile and can produce painful sores if it touches human skin. Bromine does have practical uses: silver bromide is used in photography, while other bromine compounds are used in flameproofing and to purify water.

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What are some examples of complete dominance in genetics?

Complete dominance occurs when a trait follows Mendelian genetic rules, meaning that one allele, or version of the gene for a trait, is dominant with another version being recessive, explains College of DuPage. If an individual inherits either a dominant allele from each parent or one dominant allele and one recessive allele, the dominant trait is expressed. In cases where organisms inherit one dominant allele and one recessive allele, the presence of the dominant allele prevents the recessive allele from being expressed if the trait exhibits complete dominance. The recessive trait is expresse..

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How much does a traffic light weigh?

Traffic signals whose lights have a lens diameter of 8 inches typically weigh 15 pounds, while those with a 12-inch lens diameter are usually around 30 pounds. The polycarbonate traffic signals tend to use lightweight plastic lenses and reflectors of aluminum, which reduces their weight. The smaller, lighter traffic signals with 8-inch lights are about 30 inches tall, while the larger ones are about 42 inches tall.

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Where does the element lead come from?

Lead is a solid non-metal element that has a boiling point of 3180 degrees Fahrenheit and a melting point of 621.43 degrees Fahrenheit. The element lead has an atomic weight of 207.2, a density of 11.342 grams per cubic centimeter and is assigned the group number 14, period number 6 and atomic number 82 on the periodic table of elements.

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