cooperative profits There are many things you plus your children are capable of doing over a rainy day. For instance you might watch T.V. Or you might take action that might be more educational for you and your children. You along with your children are capable of doing a science project. You are probably wondering the reason why you may want to perform a science project. Here are 5 reasons science projects are wonderful activities for rainy days. Interest rate, in the form of expression, refers to the ratio of the amount of interest to the total amount of borrowed capital in a certain period of time.  the interest rate is the interest level per unit time of the unit currency, indicating the interest rate. Economists have been looking for a theory that can fully explain the structure and change of interest rates. Interest rates are usually controlled by the central bank of the country and administered by the federal reserve board in the United States. Today, interest rates are one of the important tools for macroeconomic regulation. We have been using internet banking for quiet sometimes now. Even though there were internet banking security breach occasions, but the percentage is extremely small. People has learned to be very careful and protecting themselves when working with internet banking. Internet banking users are smart people and they discover how to protect their computer from malware and hacker containing the opportunity to interrupt within their internet bank-account. Further market analysis showed that he could make a small profit and lose money, and the time needed was long, so he decided to draw out the money as soon as possible for other deals. He's going to lose up to $1,000 on the pound. He was more concerned about how much he might lose than the pound. In the trade memo, he noted that if the price of a certain day in the city was not to the profit target, and not to "stop the loss point", the transaction would be closed. The earliest efforts were made in the areas of canning, Alexandria, munez and spaurous. The importance of gasoline was not recognized in the 19th century, when it was used in a great deal of kerosene. The oil refining then relied on simple distillation processes to separate the different components of the oil from the boiling point. The boiling point of the kerosene component is higher, and the use of safety when lighting lamps becomes the main product of crude oil refining, while gasoline and other components are often burned as fuel. By the mid - to late 19th century, the successful use of gasoline engines in 1886, in 1886, the gasoline engine was successfully used as a driving force, thus the importance of gasoline increased. But using distillation, only 20% of the gasoline can be extracted from crude oil. In 1911, the standard oil company have solved the problem of low gasoline yield, by William burton and Robert hamm forest thermal cracking process of the invention, the heavy quality heating gas oil cracking of light gasoline fractions, such as to overall improve the gasoline yield, thermal cracking process in 1913 won the patent license in the United States. The subsequent catalytic cracking process has further improved the gasoline yield and octane value.