Archive for the ‘Technology and Education’ Category

Why is the Blackboard Green?

Why is the Blackboard Green?
Although they are still widely used in classrooms today, there are a lot of facts about blackboards that people may not know about. The following information can help shed light on it. Why it is Green There are several theories put forward to explain this. One theory is that green was chosen because it is easy on the eyes. Since students have to focus on what is written there, manufacturers picked green. Studies have shown that for most people, it is the easiest color on the eyes. Other colors like yellow or orange can cause strain if stared at too long. Today however they come in various colors. Next to green, black and white are the most popular. Blackboard / Chalkboard Other facts about blackboards that need to be clarified are the names. These two are the same thing. Chalkboard is more...

Why Mars is Called the Red Planet?

Why Mars is Called the Red Planet?
Mars is fourth in the order of the planets from the sun; it comes after Mercury, Venus and Earth. For years, scientists and experts have been interested about the physical characteristics, structure and composition of its neighboring planet. They have conducted numerous explorations in the past, but there are still many other important questions at the back of their minds. As part of the solar system, it is quite interesting to find out why Mars is called the red planet. The Reason Behind the Red Appearance of Mars Why is Mars called the red planet? Due to its red appearance, many people have referred to Mars as the ‘Red Planet.’ The primary reason behind this is the prevalence of iron oxide, which is commonly referred to as rust. It produces a red-orange appearance right at the planet’s...

Why is the Genome Project Happening?

Why is the Genome Project Happening?
The goals of the Human Genome Project are numerous. They encompass a broad spectrum, from broadening scientific knowledge to improving the human condition. The following is an overview. Mapping the Human Gene The project was started in 1990. It was initially an American undertaking but soon there were contributions from all over the world. Its primary objective was to determine the DNA sequence in the body. Another one of its goals was to analyze and map the 25,000 genes in the body. The project was completed ahead of schedule. The only thing that remains now is to analyze the data. This however, can take years to finish. The goals of the Human Genome Project can be divided into various categories. They are given below. The benefits from the project run the gamut from medicine to forensics. Medicine...

Why Are Apples Associated with Teachers?

Why Are Apples Associated with Teachers?
One of the common practices in Sweden, Denmark and the U.S. at the first day of school is giving apples to teachers. This tradition is practiced to appreciate the efforts of teachers in educating children and young people. To know why people associate apples with teachers, it is important to know the history of the tradition. In addition, it is also necessary to know what apples symbolize. Apples and Teachers Why are apples associated with teachers? People commonly see the fruit as a symbol of variety, change and growth. It symbolizes change and variety because it comes in different colors such as green yellow and red. Additionally, the fruit has various tastes like sweet, sour as well as tangy. Moreover, apple symbolizes growth since the strongest branch and grove of the plant sprout from...

Why Does Copper Turn Green?

Why Does Copper Turn Green?
There are a lot of facts about copper that people may not know about. The following information will show just how prevalent it is. Why it Turns Green The reason it changes color is because of chemical reaction. When exposed to oxygen, it will assume that color. For Electrical Wiring Part of the basis why this element is useful is that it conducts electricity well. It’s this reason that it has come into use in many electrical equipment. Today the industry is one of the biggest consumers of the element. One of its most attractive features is that it becomes easy to use in electrical wiring. Because it makes wiring simple, a lot of appliances and gadgets make use of it. For Decorations Other facts about copper include the ease with which it can be fused with other elements. For example combining...