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How is trigonometry used in civil engineering?

Trigonometry is a branch within the larger field of mathematics that studies the relationships of measurements within triangles. All triangles have certain fixed relationships. For instance, one example is that the three angles of a triangle always add up to 180 degrees, no matter what the triangle looks like or how big it is. Trigonometry can be dated back to as early as the third century B.C., where astronomers used triangle properties to determine rough distances and positions of stars and planets. Today, trigonometry has a large variety of applications, one of which is civil engineering.Be..

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What types of wildlife have gone extinct in Africa?

The Madeiran Large White butterfly went extinct due to deforestation and pollution from agricultural products. The West African black rhino was officially declared extinct in 2006 due to poaching and human infringement in its living spaces. The rhinoceros' horn is a prized possession in many parts of the world. The Quagga was a relative of zebras but was wiped out because of its hide. Bubal antelopes were native to North Africa but were hunted by humans and driven to extinction.

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What are some home remedies for a migraine?

A cold or hot compress can help relieve tension in the head, neck and back area. Rubbing the temples with the index finger and thumb can also help relieve pain. People who are suffering from migraines related to neck and back tension may find that massage in the neck and back area help the tension.A bit of rest and relaxation can sometimes relieve the pain. Migraine sufferers can try taking a quick nap, going for a walk, lying down or sitting in a room with low lighting for a few minutes.Some supplements have proven effective in managing persistent migraines. For example, some migraines may st..

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What are some ways to refill your AT&T GoPhone account?

Customers using AT&T GoPhone can set up an online account with their cell number and pay to refill their accounts online using a credit or debit card. The automated phone system is also able to accept credit and debit card payments. Customers can go to licensed stores and purchase refill cards as well. Once a user purchases a refill card, he can then scratch off the back of the card and enter the pin code to put money on his GoPhone account.

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What information can be found on a stock trading volume chart?

The stock trading volume chart also shows liquidity, a stock term that shows potential investors how easy or difficult it is to buy and sell a particular stock. The stock trading volume charts also showcases current stock trends within the market and past and current trends.This type of chart illustrates price and moving averages. Price and the volume of a stock are only important when combined together. In many cases, the volume of a stock will increase before the price of the stock jumps in value.The charts show the daily trade values of the stock. Weekly charts, stock prices and volume are ..

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What are some facts about poison dart frogs?

Poison dart frogs live in the rain forests of Central and South America, from Costa Rica through Brazil. The colors of the species varies from one habitat to another. They have vibrant color schemes of red, yellow, gold, blue and black as well as green or copper that clue predators to their poisonous nature. The golden poison dart frog is no bigger than a standard paper clip, but it possesses enough poison to kill 10 people. A snake called Leimadophis epinephelus is the only natural predator for these amphibians, since it has built up a resistance to the toxins.

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What are symptoms of a bladder illness?

Bladder spasms and urinating just a small amount at a time despite a persistent urge are other symptoms of a bladder infection, explains WebMD. Mental confusion and lethargy in an elderly patient are signs that point to a severe form of urinary tract infection. When patients experience painful urination along with chills, fever, vomiting, bloody urine or abdominal pain, immediate medical attention is required. These symptoms indicate serious conditions, such as a prostate infection, a bladder tumor, kidney disease or a urinary tract stone. Persistent pain while urinating and a burning sensatio..

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What are some sayings for great-grandchildren?

Ford, U.S. first lady from 1974 to 1977, never punished her four children physically, believing that there were more constructive ways to discipline. Levenson was a 20th-century comedian and game show host who appeared numerous times on variety and talk shows such as "The Ed Sullivan Show" and "The Tonight Show Starring Johnny Carson." The father of two, he wrote "Time Tested Beauty Tips," a well-known poem, for his grandchild.

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How is duckweed eliminated from ponds?

Herbicides typically come in the form of sprays, and can eliminate several types of plants, including duckweed. Herbicides contain different chemicals that are ideal for targeting specific types of plants. Some herbicides only eliminate certain plant species while others are effective in eradicating most varieties of plants. Herbicides also vary in their levels of toxicity, and while some are relatively benign and pose little harm to humans and pets as well as plants and animals living in ponds, others act as poisons and may harm surrounding organisms. Duckweeds are resistant to most broadleaf..

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What does the color silver symbolize?

The meaning of the color silver can also denote affluence and honor because its metal counterpart is minted as money and worn as jewelry. People who wear silver are believed to be modern and elegant. In the past, silver was worn by royalty and other dignified members of a society, and silver remains a customary gift to give a respected couple on their 25th wedding anniversary. The term "silver tongued" came from the belief that a person could gain public speaking ability by wearing the color silver.\nWhether in its natural metal form or a sparkly shade, silver will continue to have strong sign..

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