Bakelite, also known as polyoxybenzylmethylenglycolanhydride, is a plastic created by an elimination reaction of phenol and formaldehyde. It is made from synthetic components and was one of the first plastics to be made in this way. It was very popular after its invention and was used for many applications. It was heat resistant and didn’t conduct electricity, which meant that it was commonly used for electrical insulators as well as telephone and radio casings. It was also a popular material for kitchenware, children’s toys, jewelry and much more. Bakelite is rarely used today because it is brittle and costs more to make than other plastics. However, products made from bakelite remain popular with collectors of retro items. Let’s find out who invented this type of plastic.
Yaks are members of the bovine family (the same family as domesticated cows, buffalo and bison) that have been domesticated for many thousands of years. They are raised for their meat, milk and fiber and make very good working animals. Wild populations of this species do exist, but are considered vulnerable to the threat of extinction. Yaks are best known for their large size (although wild yaks are generally larger than the domesticated yaks), long fur and distinctive horns. Let’s find out where these animals live.
Cholera is an infectious disease of the small intestine that causes watery diarrhea and vomiting. It is caused by the bacteria Vibrio cholerae and is typically spread by fecal contamination of water or food due to poor sanitation. A person must ingest a considerable number of bacteria (about 100 million) to be infected and the symptoms typically show after one to five days. The infection can be quite dangerous because an untreated person can lose as much as 20 liters (5 US gallons) of fluid per day. This leads to severe dehydration and death in approximately 60% of untreated cases. Let’s find out how this serious condition is treated.
Fluorine is a highly reactive, pale yellow gas at room temperature. It is commonly found in the crust of the Earth (it is the 13th most common element) as a part of certain minerals, such as fluorite. It is a chemical element with the atomic number 9 and represented by the chemical symbol F. Fluorine is one of only 26 chemical elements that only have one stable isotope (these are known as monoisotopic elements). However, many other isotopes of fluorine have been identified.
Frogs are amphibians that are found throughout most of the world. They begin life as an egg, which hatch into larvae (tadpoles) with tails and gills. They turn into adults at a later stage when they develop legs and lose their tail. There are about 5000 different species of frogs that have been identified. The average size of a frog is about 8 cm (3.1 in) long, but some species are much smaller or larger than this. Let’s find out which of the 5000 species of frogs is the largest in the world.
Nevada is a state located in the southwestern region of the United States of America. It is a large state in terms of area, but it relatively low in population. It is bordered by Oregon, Idaho, Utah, Arizona and California. The region has a long history of human habitation that dates back thousands of years, but European history is relatively recent. Let’s take a brief look at the history of Nevada and find out when it became a state.
Coconut is the name given to the fruit (sometimes called a nut) from the coconut palm tree. This fruit has three layers which are the outside (brown fibrous husk), inner (brown hard shell) and inside (white edible “meat” and coconut water). The edible portion of the coconut can be used to produce cooking oil, coconut milk and has many other culinary uses (in fresh or dried forms). There are also a variety of other traditional and modern uses for the other parts of the coconut. The coconut palm resembles other palm trees and can grow to 30 m (98 ft) in height with large branches. An average coconut palm produces about 50 fruit per year, but this can be improved with proper cultivation practices. Let’s find out where the coconuts come from and where they are grown today.
The Philadelphia Flyers are a professional hockey team that compete in the Atlantic Division of the Eastern Conference in the National Hockey League (NHL). The team was founded in 1967 as an expansion team and the name of the team was announced the year before after a contest. The team didn’t take long to become a success and they won the Stanley Cup in the 1973-74 season and the 1974-75 season. Major success has eluded the team since this time, but they have managed to win a number of division and conference championships. Let’s find out where the Philadelphia Flyers play their home games.
Kristen Bell is a celebrity actress who began her professional career on Broadway after graduating from the Tisch School of Arts in New York. She decided to move to Los Angeles to further her acting career and managed to land many small roles before getting her big break with the hit television series “Veronica Mars.” This launched her career and led to a number of important roles in film and television. She is yet to reach A-list status, but looks to have a very bright future ahead of her. The following is a list of movies that Kristen Bell has acted in during her career so far.
Praseodymium is a soft, silver metal that is highly reactive. It oxidizes in air to form a flaky green coating which falls off the outside of the metal. This means that any pure metal that is produced must be stored in mineral oil or glass. It is a chemical element with the atomic number 59 and the chemical symbol Pr. It is never found in its free form in nature, because it is too reactive, but can be found in certain minerals. It is commonly found in the rare earth minerals bastnäsite (bastnaesite) and monazite. Praseodymium is a rare element and only small amounts are produced each year. Let’s find out who discovered this element.