Human Population Through Time | demographics แปล ว่า

Human Population Through Time


นอกจากการดูบทความนี้แล้ว คุณยังสามารถดูข้อมูลที่เป็นประโยชน์อื่นๆ อีกมากมายที่เราให้ไว้ที่นี่: ดูเพิ่มเติม

It took 200,000 years for our human population to reach 1 billion—and only 200 years to reach 7 billion. But growth has begun slowing, as women have fewer babies on average. When will our global population peak? And how can we minimize our impact on Earth’s resources, even as we approach 11 billion?
humans population humanevolution overpopulation
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http://media.amnh.org/sciencebulletins/AMNH_HumanPopulation_DOWNLOAD.mp4

Related content:
Population Connection
http://worldpopulationhistory.org/map/1/mercator/1/0/25/
UN World Population Prospects
https://esa.un.org/unpd/wpp/
Realtime population counter
http://www.worldometers.info/worldpopulation/
NASA EarthData
https://earthdata.nasa.gov
NASA Socioeconomic Data and Applications Center
http://sedac.ciesin.columbia.edu
Video credits:
Writer/Producer
AMNH/L. Moustakerski
Animator
AMNH/S. Krasinski
Sound Design
AMNH/J. Morfoot
Scientific Advisors
AMNH/S. Macey
AMNH/J. Zichello
Center for Biodiversity and Conservation
Images
PhyloPic
David Hillis, Derrick Zwickl, and Robin Gutell, University of Texas
World Population used courtesy of Population Connection, ©2015
Other Population Data Sources
Population Connection
United Nations, “World Population Prospects: 2015 Revision”
US Census Bureau
Maps and Event Sources
Encyclopedia Britannica
Inner Asian \u0026 Uralic National Resource Center
NASA
NOAA
Needham, J. Science and Civilisation in China
TimeMaps
TransAtlantic Slave Trade Database

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Human Population Through Time

Bangladesh: Hell on Earth. Poorest country of Asia


We all live on the same planet, but we live according to different laws!
We will walk through the richest and poorest, country with freedom and without, and through countries where we would not want to be born. We will show the most attractive and most repulsive countries and try to figure out whether this is really true and why? In this episode we will talk about Bangladesh which is completely opposite to Canada and check the description for an episode about Canada. Which one of them is rich, and which one is poor, you ALREADY guessed for yourself, but why is this so?
Bangladesh is one of the poorest countries in the world; it is a kind of Mariana Trench among the countries of the world. If someone does not know, it is in Asia, next to India. Its inhabitants are 10 times poorer than the inhabitants of Canada and the country is 137th in the world in terms of income per person. By area, Bangladesh is smaller than Canada, and in this territory, which is almost 66 times smaller than the territory of Canada, lives 168 million people. Apart from the dwarf countries, Bangladesh is the most populous country in the world. Bangladesh has much in common with India: culture, traditions and customs however the country is not inhabited by Indians, but by Bengalis who speak the Bengali language. In fact, it is almost impossible to differentiate a Hindu from a Bengali, like a Japanese from a Korean. Bangladesh is translated from Bengali as “the country of Bengalis”. English for communication is not needed here, unlike multinational India. Almost 90% of Bangladeshi people practice Islam. Some locals, to show that they are different from people of a different faith, dye their beard or hair in red.
Worldwide, there are over 250 million Bengalis, about 100 million of whom lives in India. Bangladesh is a relatively young state. After the partition of India, the territory of modern Bangladesh became East Pakistan. And only after the war for his independence in 1971 it became an independent country with the current name.
Despite such disappointing characteristics, it is a vibrant and very unusual country. The first thing that catches your eye in Bangladesh is people. They are everywhere. Both in the city and in the village, the majority lives on the street. There is a feeling that people only spend the night in the houses, and spend most of the day outside, where they work, eat, wash and relax.
Due to the lack land, many residents build their houses along the railway tracks. Life on rails here is commonplace. Between the trains, it seems that these roads have long been abandoned: children play everywhere, mothers bathe their babies, and garbage is everywhere. But after the train hoots, this impression instantly disappears. Of course, not everyone manages to clear the way, and not always, and even in the hustle and bustle of a slum life, a beep is sometimes just not heard, therefore, mortality in these areas is very high.
The capital of the country is Dhaka, it is one of the largest cities in the world. This is a real shocking Asia, an environmental disaster zone and an apocalypse on Earth. A catastrophically overpopulated city with about 20 million inhabitants. Dhaka, has one of the highest percentage of homeless people among the capitals of the world. This is the dirtiest city in the world, which is literally littered with garbage. The Baricanda River, which runs through Dhaka, is one of the dirtiest rivers on the planet. Garbage, industrial waste and even the remains of animals and people are dumped in there. Despite all this, the townspeople use its water in everyday life, which is why a lot of people die from skin and cancer diseases. They bath right inside the river and, it seems from washing in such water, they become even dirtier. Poverty and overpopulation in Dhaka give a scary impression; 70 percent of the population lives below the poverty line. Bangladesh is a rickshaw country, urban traffic is chaos from cycle rickshaws, trucks, cars and pedestrians. Roads in the capital are broken and covered with mud. There is no central sewage system in Dhaka, and all human waste directly flows into lakes or rivers, and then into the Bay of Bengal. Dhaka is a city where they do not care about life; these are people who have not seen another way of life and do not know what the comfort is. In general, so far Dhaka is some kind of trash and gloom, and everyone who visits this city at least once afterwards thanks God that he has everything. In such a poor country as Bangladesh, people still believe in a large family, as a faithful guarantor of a secure old age. Almost 40% of the country’s inhabitants have no education, and the country is ranked 143rd in the world by education index.

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Bangladesh: Hell on Earth. Poorest country of Asia

Top 10 most populated states in India


Top 10 most populated states in India
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This video shows top ten most populated states in India.In India is the second most populated country in the world.
Top 10 most populated states in India
10.Andhra pradesh
9.Gujarat
8.Karnataka
7. Rajasthan
6.Tamil nadu
5. Madhya pradesh
4.West bengal
3.Bihar
2.Maharashtra
1.Uttar pradesh

Top 10 most populated states in India

Animation of the demographic transition model and population growth \u0026 decline


To compare the development of countries, often used indicators, such as average income, concern economic development. Indicators on the level of mortality and birth also tell us something about the development of a country and are therefore useful indicators. Two frequently used indicators are the birth rate and the mortality rate.
The birth rate starts with the number of live births in a year. Because there are more people living in one country than in another, more children are probably born in that country. That is why we calculate the birth rate per 1000 inhabitants. In this way, countries can be compared. We do this in the following way.
The Netherlands had 16.979.120 inhabitants in 2016 and 172,520 babies were born in that year. We divide the number of babies by the number of inhabitants and multiply by 1000 to calculate the birth rate. We therefore divide 172,520 by 16,979,120 and we multiply by 1000. So, the birth rate of the Netherlands in 2016 was 10.2.
The mortality rate is calculated almost in the same way, but here we share the number of deaths by the inhabitants. In 2016, 148,997 people died in the Netherlands. We divide 148,997 by 16,979,120 and multiplie it by 1000 and then it appears that the mortality rate of the Netherlands in 2016 was 8.8.
The natural population growth is the difference between the birth and the mortality rate. 10.2 8.8 is 1.4. The natural population growth in the Netherlands in 2016 was therefore 1.4.
The birth rate and the mortality rate show us a lot of development in a country, because they develop over time. We can show this development in the demographic transition model. Demos means people and graphically a description. The demographic transition model thus shows a change in the characteristics of the birth and mortality rate. We can show the demographic transition model as a graph, in which the lines represent the birth rate, the mortality rate and the total population size. The model consists of five phases.
If a country is very poor and hardly developed, both the birth and mortality rates will be very high. This is phase 1. The mortality rate can reach 40 and the birth rate even something higher. This means that an average of 40 people die each year per 1000 inhabitants. That is because the health care is still poorly developed. People get a lot of children, so the children can take care of the parents when they’re old and there are still few contraceptives available. Nowadays there are actually no countries anymore that meet this description.
When a country starts to develop, the quality of health care increases. People are being vaccinated, better doctors and more hospitals are available. This reduces the mortality rate. This is phase two. Because the birth rate still remains high, there is a huge natural population growth. This increases the total population size. The poorest countries in the world meet this description, such as Angola and Chad. It is important for these countries to continue to develop so that the population growth will decline!
In phase three there is already a low mortality rate, but also the birth rate declines. Contraceptives are more available and because child mortality is falling, people need fewer children who can take care of them later. Girls also go to school much longer, which leads to a lower birth rate. Because there is still a big difference between the birth and mortality rate, the population continues to increase, but the increase is declining. Many countries that have developed quite well already meet this description, such as Indonesia, South Africa and Mexico.
In phase 4 there is a low birth and mortality rate. The natural population growth is low again, as a result of which the population size hardly grows. Many developed countries meet with this description, such as the Netherlands.
In phase 5 the mortality rate increases and becomes higher than the birth rate. For the first time in the history of a country it has to do with a natural population decline instead of growth and so the total population size decreases. This happens when the population is getting older, so that more and more people die. Only a few of the most developed countries meet this description, such as Germany.
The demographic transition model helps us to compare the development of countries and shows us which demographic developments a country will experience in the future.

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Animation of the demographic transition model and population growth \u0026 decline

Demographic transition | Society and Culture | MCAT | Khan Academy


Created by Sydney Brown.
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Demographic transition | Society and Culture | MCAT | Khan Academy

นอกจากการดูหัวข้อนี้แล้ว คุณยังสามารถเข้าถึงบทวิจารณ์ดีๆ อื่นๆ อีกมากมายได้ที่นี่: ดูวิธีอื่นๆTechnology

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