Yellow fever is a mosquito borne disease caused by a virus from the Flaviviridae family, called the yellow fever virus. This virus is transmitted via female mosquitoes, especially the yellow fever mosquito called Aedes aegypti, in tropical and subtropical regions of South America and Africa. Africa is home to 90% of the cases of the disease and it is thought that it originated in this location. It is considered to be one of the most dangerous human diseases and causes fever, chills, muscle pain, headache and nausea. However, if the disease progresses to the second stage it can lead to liver damage, internal bleeding and death in 20% of cases. It is estimated that there are 200,000 cases a year and more than 30,000 deaths. Let’s find out how this potentially fatal disease is prevented and treated.
Sir Winston Churchill was a British politician and one of the best known British Prime Ministers of all time. He led the United Kingdom during World War II and is regarded by many as one of the best wartime leaders in history. He was also widely respected as an artist, historian, and writer and won a Nobel Prize in Literature in 1953 for his many published works. Churchill served two terms as Prime Minister, from 1940-1945 and from 1951-1955. The second term came to an end when his health started to fail. Let’s take a look at the final years of Churchill’s life.
The Chicago Blackhawks are a professional hockey team that compete in the Central Division of the Western Conference of the National Hockey League (NHL). The Blackhawks were founded in 1926 when they joined the NHL as a part of the expansion into the United States. The Blackhawks won their first Stanley Cup in 1933-34 and the team has achieved ultimate success on three other occasions. The team played their first home game at the Chicago Coliseum, but this arena is long gone. Let’s find out where the Blackhawks play their home games today.
Yttrium is a silver metal that is not found as a free metal in nature. It is a chemical element represented by the symbol Y and atomic number 39. Yttrium is often classified as a rare earth metal, but it is the 28th most common element in the crust of the Earth. It is commonly found in rare earth minerals where, despite being difficult to separate, it is obtained for commercial use. About 600 metric tons are produced each year for a number of important uses. Let’s find out who discovered this element.
Roosters are the male members of the chicken species. The word rooster was comes from the United States, but it is now used in many countries instead of the traditional term cockerel. Roosters breed with more than one hen and guard the area where the hens nest. He will defend this area and attack any other rooster that enters. During the day the rooster will sit on a high perch above the ground to keep watch. It is from this perch that roosters are most likely to crow, which is used to guard his territory, to react to a disturbance and/or sound, to warn of predators and to communicate with the hens. Most of us are taught that roosters crow at sunrise. Read on to find out when roosters begin to crow and what time of the day they are likely to crow.
Tarantulas is the name given to a group of large spiders, known as the Theraphosidae family, made up of approximately 900 different species. Tarantulas are best known for their large size and hairy appearance, although not all species in this family have these traits. The largest tarantula, the goliath birdeater, can weigh up to 150 g (5.3 oz) with a leg span of 30 cm (12 in). There are two main groups of tarantulas; those that hunt in trees and those that hunt on the ground. All tarantulas have a similar diet, although larger species can eat larger prey. Despite their large, intimidating appearance most species are harmless to humans and they are often kept as pets. Let’s find out the common distribution and habitat of these large spiders.
Gelato is a form of ice cream that contains little to no air. It is made from milk, cream, sugar/s and flavorings that are usually derived from fruit and nuts. Gelato also usually contains egg and the simple base recipe can be flavored in a variety of ways. The word gelato is Italian in origin and comes from the Latin word “gel?tus” which means frozen. Dairy gelato is generally higher in sugar than ice cream, but lower in fat. Traditional gelato uses fruit and nut purees to flavor the product so they don’t usually contain as many artificial colors and flavors. How is this delicious, frozen treat made? Read this article to find out.
Cadmium is a soft, bluish-white metal with an atomic number of 48 and the chemical symbol Cd. It is part of group 12 on the periodic table and is one of the three, along with zinc and mercury, stable metals in this section. It has a low melting point compared to the transition metals and is mainly found as part of zinc ores. It was discovered in 1817 by two German scientists, Stromeyer and Hermann. In certain forms this element is toxic causing death at high levels. Due to this fact, the uses of cadmium are gradually decreasing as new and safer materials are found. This article will detail how cadmium is used in the world today.
Lehman Brothers Holdings Inc., commonly known as Lehman Brothers, was a financial services firm serving the globe. It was the fourth largest investment bank in the United States and offered various services such as investment banking, equity, fixed income sales and trading, private banking, investment management and market research. It was founded in 1850 by the Lehman brothers, Henry, Emmanuel and Mayer. The headquarters of Lehman Brothers was in New York City. The company declared bankruptcy in 2008 and made history as the largest bankruptcy filing in United States History.
Jim Caviezel is a celebrity actor who initially had aspirations to become an NBA star until a foot injury ended his career and turned his attention to acting. He began acting on the stage before landing his first film role in 1991. Soon after this he decided to pursue a career in Los Angeles. He landed small roles at first, but his career slowly gained momentum. In 2004 he played Jesus in the controversial film “The Passion of the Christ” and it is for this he is best remembered today. The following is a list of movies that Jim Caviezel has acted in during his career.