Immigration to the United States was spurred by a worldwide economic crisis in the 1890s in which Europe was particularly hard hit. Governments having policies of tight monetary control and costs of changeovers due to the Second Industrial Revolution resulted in a shortage of cash. Immigration to the United States was especially strong from the poorer countries of southern Europe, like Spain and Italy.
2,5,15,25,40
Can you clarify what you mean by doubling in liberty ? The "L, R T and Y " in Liberty show strong doubling
double stamped or double die pennies can be worth A LOT!!! yours is probly at a normal circulated condition worth over $10,000 easily The first statement is correct. The second one is incorrect in both spelling and amount. You need to have your coin inspected by a dealer or appraiser who is trained in examining error coins. There are several causes of doubling - hub doubling, double-strikes, etc. and a value can't be determined without an in-person examination.
Most likely this "doubling" is caused by erosion of the die, which happened often from striking these harder metal coins. Value a couple dollars.
Assuming when you say "double stamped" you mean "double die" [2 images of some of the details of the coin can be seen], there were no double die cents in 1975. However, that does not mean there are not coins on which 2 images of some of the details, like letters or numbers, can be seen. There is what is known as "machine doubling". This happens when the coin presses and dies do not fit together very well, usually because of wear, and when a coin is struck by the die the looseness of the machinery causes the die to bounce just a little and , in effect, strike the coin for a second time. The "bounce" strike would not exactly match the image on the coin from the intended strike and thus parts of the coin appeared doubled. Machine doubling was more common in the early 1980s but it was also seen in the 1970s. This sort of doubling has little if any numismatic value.
Doubling population rate is however long it takes for a country's population to double - but calculation wise I THINK (not sure) [ (Immigration rate - emigration rate) + (Birth rate - death rate) ]check around site for a confirmation of the formula
The population of Slovakia is about 5,430,000.
The worldwide demand for water is doubling every 21 years, according to an estimate from the World Bank. The World Bank was founded in 1944.
289 years
21 years
43 years.
In 2011, China's population doubling time was approximately 32 years. This means that based on the population growth rate at that time, it would take around 32 years for the population to double in size.
birth rate=22.22 births/1000 population death rate= 6.4 deaths/ 1000 population net population increasing rate NPIR = 15.82births/1000 population doubling period = ln 2/NPIR = ln 2*1000/15.82 =43.81 year
The population was doubling and this meant less jobs.
2,5,15,25,40
every 20 years
Germany and other European countries' natural growth rate is actually negative (on average, women in Germany give birth to 1.5 children, which is below the number to yield zero population growth, approximately 2.1 children). Germany's natural growth rate of -0.1 can not be used to determine doubling time because the population is actually shrinking in size.