Magnesium (with a symbol of Mg) is a metallic chemical element. It has an atomic number of 12, and—like calcium and barium—is considered to be an alkaline earth element. Magnesium was discovered in1808 by the scientist Sir Humphry Davy. However, some believe Davy only found magnesium oxide, and...
How many times have you heard how important first impressions are? People will tell you when you first meet someone new, the individual decides within the first few minutes of the initial encounter whether or not you are someone he/she would like to: befriend, hire, become lovers with, or avoid...
Zinc is a kind of metallic chemical element. It is considered to be a transition metal, similar to nickel and mercury. It has the chemical symbol of ZN with an atomic number of 30. In its pure form it has a kind of light blue color. It tends to be quite brittle at room temperature but, once it is...
It was reported at a news conference December 2, 2010 that NASA funded astrobiologist Felisa Wolfe-Simon has isolated a form of life that is capable of using arsenic instead of phosphorus as an elemental building block. These are microbes from the domain Archaea, which have an independent evolutionary...
Nitrogen is a chemical element that is crucial in sustaining the Earth’s atmosphere and all life. In fact, about 80% of the atmosphere is made of nitrogen. It plays, literally, such a big part in life that scientists say that it is the seventh most abundant chemical in the universe....
Steel is an ideal construction material—it is easy to shape, strong, and easy to manufacture. It can also be remelted and recycled, making it very “sustainable” and eco-friendly. However, like all metals it is prone to rust and corrosion, especially when it is exposed to the elements. To solve...
We live in precarious times; a time when disaster preparations are an important responsibility which cannot be overlooked. Emergency situations have become almost commonplace. It used to be that workplace violence, school shootings, terrorist attacks and natural disasters were rare occurrences....
Formaldehyde is a type of chemical compound that is of essential use to many manufacturing sectors and other industries. When talking of formaldehyde, most people will be more familiar with one of its forms – formalin. Formalin is a solution of formaldehyde that is famous for being used as an...
Careers within the health care industry are expected to expand into a record number of job opportunities. Health care careers dominate eight of the top ten highest paying occupations and offer a variety of employment possibilities with ample salaries. During May 2009, the U.S. Bureau of Labor...
Sulfur is a chemical element with the symbol “S” and an atomic number of 16. It is considered to be a non-metal. It has a number of different ions, resulting in Sulfites (which are used in food processing) and sulfates (which are used in manufacturing). Sulfur can also be found in living organisms...
