VIVAnews -at the end of 2007, the UN announced that the population of humans on planet Earth has reached a figure of around 6.7 billion people. From the figures of about 7 billion people in this year, the UNITED NATIONS predicts that world population will reach 10.1 billion.
According to the official UNITED NATIONS report entitled 2010 Revision of World Population Prospect, most of the surge in population donated by countries that its citizens was fond of giving birth. As such there are 39 countries in Africa, 9 in Asia, 6 in Oceania, and 4 in Latin America.
"Between 2011 and 2100, the average growth rate in the countries that will increase the fertile triples," call the UN report, as quoted DailyGalaxy, from May 6, 2011. "The number rose from 1.2 billion to 4.2 billion," call of the UNITED NATIONS.
In that same period, the rate of population growth in countries that the level of kesuburannya ' average ' only reached 2.6 percent, up from 2.8 billion to 3.5 billion.
However, the population in developed countries, low levels of fertility of its citizens were down 20 percent. The population has now reached 2.9 billion will be left at 2.4 billion by 2100.
In addition, the UN estimated that, globally, the level of life expectancy (life expectancy) human beings is also increasing. From the age of 68 years in 2005 to 2011, in the year 2095 and 2100, the average human life until the age of 81 years.
More detail, in countries with high fertility rate, life expectancy of its citizens reached 77 years.
In countries with high fertility, life expectancy reached 82. As for in countries with low fertility, in the year 2095-2100, humans there on average able to survive to the age of 86 years.
However, specifically on the report, the United Nations does not take into account the number of population or life expectancy a result of an increase in genetic technology, nanomedis, an increase in human intelligence and other factors or due to population reduction opportunities of various other risks such as war or outbreaks of communicable diseases. (eh)
Friday, May 6, 2011
UN: 2100, the number of Humans on Earth 10.1 billion
Wednesday, April 6, 2011
Is it true that Humans Add Young Every 7 years?
VIVAnews -in the community during this circulated myth that every seven years (or 10 years) depending on the version of the story you hear, we become human beings. The reason, in the period, all the cells in the body has been replaced with new cells.
From research, it is true that each cell in the human body has the age of each. However, if the myth is true?
In the book Science Desk Reference (Stonesong Press, 1995) mentioned, on the human body there are 50 to 75 trillion cells. each had his own and when the man in question is dead, the cell takes hours even days to die.
Forensic investigators frequently exploit the situation to determine the cause of death and time of death, for example a principal committed suicide.
As quoted from Life's Little Mysteries, April 6, 2011, red blood cells can live for 4 months, while the white blood cells on average live more than a year. The cell belonged to the colon died after 4 days, whereas sperm cells age only 3 days only.
Although in general the cells have a short, but brain cells generally live for human life. Neurons in the cerebral cortex, for example, was not replaced when they die.
From the facts above, the annual cycle of 7 such as the story is not true because cell berdar died and was replaced almost every day by the body. It is not clear from where the myth originated. Chances are, a who has good intentions but lacks enough information assume that all cells are updated after 7 years and then the man became a new man. (umi)
