Archive for the ‘Technology and Education’ Category

Why Doesn’t Arizona Observe Daylight Savings Time?

Why Doesn't Arizona Observe Daylight Savings Time?
Daylight savings time refers to the practice in some U.S. states of advancing the time. The practice was implemented in different states to add light to afternoons. The objective for the implementation of this practice is to save electricity that is used in the evening. Daylight savings time is beneficial to the operations of commercial establishments in different states. However, one of the downsides of the practice is that it complicates the business patterns as well as sleep patterns of people. Because of the limitations, some states in the country like Arizona do not implement the practice. Impact on the Lifestyle of People and Energy Consumption in the State of Arizona Why does not Arizona observe daylight savings time? The state does not practice daylight savings time because the temperature...

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...

Why is Pluto Not a Planet?

Why is Pluto Not a Planet?
There are several reasons given by astronomers as to why Pluto is no longer a planet. To better understand it, some background information is essential. Discovery and Classification In 1930 Clyde Tombaugh spotted the object over Arizona. It wasn’t entirely unexpected. The movements of the other planets suggested the existence of another one. Even before its discovery, scientists were confident in its existence, which they called Planet X. The Kuiper Belt Early on, it was assumed the Solar System consisted of the nine planets, their satellites, comets and the asteroid belt. Over the years, several heavenly bodies were discovered. Eventually scientists discovered the existence of the Kuiper Belt. These objects covered the space from Neptune up to 55 AU (astronomical units). This...

Why Do Pennies Turn Brown?

Why Do Pennies Turn Brown?
You might have seen it happen many times and ask why pennies turn brown. There are those that guess that pennies get rusty and thus producing the brownish color. That wild guess might not be too far off. In fact the formation of rust on iron is quite related to why pennies turn brown. Properties of Copper Pennies are made of a copper alloy. This might bring up a side question of why choose copper when minting pennies. The answer relies on the very properties of copper and why is it a wise choice when minting coins. Understanding the properties of copper will also explain why pennies turn brown. Looking Into Copper Oxidation It is common knowledge to us that iron rusts when you expose it to air or water, which is a process known as oxidation. Oxidation, in layman’s terms, is the process...

Why Did Astrology Start?

Why Did Astrology Start?
Most people are aware of their sun sign (Leo, Virgo etc) but there are actually still questions regarding the origin and history of astrology. These are just some of the prevailing hypotheses about the subject. Origin It’s very difficult to give exact dates as to when the practice began. It’s a fact that early civilizations paid very close attention to the stars and their movements. Primitive man was heavily dependent on agriculture for his food. Given this fact, he learned the value of observing the occurrences of the seasons, rain, sunshine and other heavenly influences. As time went by, man became convinced that the stars and planets played a role not just in his livelihood but in his character and personality too. The Earliest Practitioners The history of astrology probably started...