Thursday, August 22, 2019

A Very Beautiful Poem By Mother Teresa

People are often unreasonable, illogical, and self centered;
forgive them anyway.

If you are kind, People may accuse you of selfish, ulterior motives;
Be kind anyway.

If you are successful, you will win some false friends and some true enemies; succeed anyway.

If you are honest and frank, people may cheat you;
Be honest and frank anyway.

What you spend years building, someone could destroy overnight;
Build anyway.

If you find serenity and happiness, they may be jealous;
Be happy anyway.

The good you do today, people will often forget tomorrow;
Do good anyway.

Give the world the best you have, at it may never be enough;
Give the world the best you've anyway.

You see, in the final analysis it is between you and God;
It was never between you and them anyway. 

Wednesday, August 21, 2019

As You Travel Through Life.........

Image result for As You Travel Through Life
As you travel through life there are always those times
When decisions just have to be made,
When the choices are hard, and solutions seem scarce,
And the rain seems to soak your parade.

There are some situations where all you can do
Is simply let go and move on,
Gather your courage and choose a direction
That carries you toward a new dawn.

So pack up your troubles and take a step forward -
The process of change can be tough,
But think about all the excitement ahead

There might be adventures you never imagined
Just waiting around the next bend,
And wishes and dreams just about to come true
In ways you can't yet comprehend!

Perhaps you'll find friendships that spring from new things
As you challenge your status quo,
And learn there are so many options in life,

Perhaps you'll go places you never expected
And see things that you've never seen,
Or travel to fabulous, faraway worlds
And wonderful spots in between!

Perhaps you'll find warmth and affection and caring
And somebody special who's there
To help you stay cantered and listen with interest
To stories and feelings you share.

Perhaps you'll find comfort in knowing your friends
Are supportive of all that you do,
And believe that whatever decisions you make,
They'll be the right choices for you.

So keep putting one foot in front of the other,
And taking your life day by day...
There's a brighter tomorrow that's just down the road -
Don't look back! You're not going that way! 

Saturday, August 17, 2019

The Largest Human-Made Lakes In The World

Lake Kariba is the largest artificial lake in the world.



Human-made lakes or reservoirs are usually created as a result of dams constructed over a river. The water behind the dam accumulates to fill up the created artificial basin. Dams could also be made on an outlet channel of a naturally occurring lake to provide better control of the water level in the lake.Such types of constructions typically maintain the natural characteristics of the lake, and examples of such constructions include Lake Tahoe in the US and Lake Victoria in East Africa. Human-made lakes are found mainly in regions having limited natural lakes or where the lakes are not suitable for human water needs.

The Largest Artificial Lakes In The World

Kariba Dam

Kariba dam is the largest humanmade lake in the world. Located in Zambia and Zimbabwe, it can hold up to 180.6 cubic kilometers of water. It was constructed in 1959 on river Zambezi and has a height of 420 feet and a width of 1900 feet. Lake Kariba extends for 170 miles. The primary purpose of the dam is to generate electricity and supplies about 1626 megawatts of electricity to Zambia and Zimbabwe. When the dam was constructed there was resettlement or approximately 57,000 people who were living in the area on both countries of Zambia and Zimbabwe. Lake Kariba controls about 90% of the total runoff of river Zambezi and has directly affected the ecology significantly in the downstream. Between 1958 and 1961 the wildlife rescue operation on river Zambezi captured about 6,000 large animals and several other small animals that were facing a threat from the rising water on the lake. In 2008 it was reported that the heavy rains could force the release of water from the dam which would affect at least 50,000 people who were living downstream. In 2010, the floodgates of the dam were opened because of the rising water on the reservoir, and this forced evacuation of about 130,000 people who were living in the floodplains. In 2014 engineers from the Zambezi river authority warned the foundation of the dam had weakened and needed repairs.

Lake Volta

The Akosombo dam is also known as Volta Dam, and it is a hydro-electric generating plant on Volta River in Ghana. The Akosombo dam is the largest human-made lake in the world by surface area which is approximately 3,283 square miles and accounts for 3.6% of the land area of the whole of Ghana. However, by volume size, it is the third largest after Bratsk reservoir in Russia. Akosombo dam has a volume of 150 cubic kilometers, and the main purpose of the dam is to provide electricity, and its original output was 912 megawatts, which was later upgraded in 2006 to 1020 megawatts.The flooding that created Lake Volta reservoir had a substantial environmental impact and displaced many people. The Akosombo dam supplies electricity to Ghana and other neighboring countries in West Africa like Benin and Togo. At the time of commissioning 20% output of the dam was serving 70% of the country's demand, while the 80% was reserved for Volta Aluminium Company (VALCO).

Manicouagan Reservoir

Manicouagan Reservoir in Canada is multiple buttress dam, and it was constructed on Manicouagan River stretching 133 miles. The construction of the dam began in 1959 and by 1970, and the primary purpose for the dam is to generate electricity and supplying water to the powerhouses. It has the capacity of 2,596 megawatts. The dam is the fourth largest in volume holding capacity of 141.8 cubic kilometers. The project is owned and operated by Hydro Quebec.

Importance Of Dams

The human-made lakes are purposely constructed to address specific requirements.The purpose they serve may include commercial fisheries, power generation, Supplying drinking water, irrigation, industrial and cooling water supplies, commercial sports, and other recreational activities. Some of the earliest reservoirs were constructed about 4000 years ago in Egypt, China, and Mesopotamia and their primary purposes were irrigation and supply of drinking water.

The Largest Man Made Lakes In The World

RankReservoirNominal volume km³RiverDamCountryYear
1Lake Kariba180.6Zambezi RiverKariba DamZambia/Zimbabwe1959
2Bratsk Reservoir169.0Angara RiverBratsk DamRussia1964
3Lake Volta150.0Volta RiverAkosombo DamGhana1965
4Manicouagan Reservoir141.8Manicouagan RiverDaniel-Johnson DamCanada1968
5Lake Guri135.0Caroní RiverGuri DamVenezuela1986
6Lake Nasser132.0Nile RiverAswan High DamEgypt1971
7Williston Lake74.3Peace RiverW. A. C. Bennett DamCanada1967
8Krasnoyarsk Reservoir73.3Yenisei RiverKrasnoyarsk DamRussia1967
9Zeya Reservoir68.4Zeya RiverZeya Hydroelectric StationRussia1978
10Robert-Bourassa Reservoir61.7La Grande RiverRobert-Bourassa generating stationCanada1981
11La Grande-3 Nord Reservoir60.0La Grande RiverLa Grande-3 generating stationCanada1981
12Ust-Ilimsk Reservoir59.3Angara RiverUst-Ilimsk DamRussia1977
13Boguchany Reservoir58.2Angara RiverBoguchany DamRussia1989
14Kuybyshev Reservoir58.0Volga RiverZhiguli Hydroelectric StationRussia1955
15Cahora Bassa55.8Zambezi RiverCahora Bassa DamMozambique1974

Friday, August 16, 2019

Largest Empires In Human History By Land Area

At the height of its dominance, the British empire covered an astonishing 13 million square miles.




The sun is always shining, the old saying goes, in one or more territories of the vast British Empire. However, it is not the only empire to leave its mark on history - a mark that reaches every corner of the world.
Definitions of an empire vary widely. An empire could be made up of one state, multiple states, or groups of countries. Empires are formed from ethnic, cultural, national, and religious components. As such, determining which aspect to use to measure an empire is problematic. This is because the mentioned factors often overlap one another. However, the following largest Empires were determined following a methodology strictly based on total land area.

10. Portuguese Empire, Early 19th Century, 4.02 million square miles

By 1815, the Portuguese Empire was four million square miles. It covered the regions known today as Brazil, Mozambique, Zambia, and Zimbabwe, as well as other regions in Africa. It is notable for being one of the first empires in history to cover such great lengths. Throughout the 20th century, pieces of the empire began to gain independence. It was officially dissolved when Portugal gave Macau to China in 1999.

9. Yuan, 1271-1368, 4.25 million square miles

The Yuan Empire, established by Kublai Khan Clan, succeeded the Mongol Empire to become an imperial Chinese dynasty. It covered an area of 4.2 million square miles. The Pax Mongolica system promoted commercial, cultural, and scientific growth. In this era, Yuan was at peace with the Khanates of Western Mongolia.

8. Abbasid, 9th Century CE, 4.29 million square miles

Abbasid was part of the vast and powerful Arab Empire. In 750 AD, Abbasid overthrew the Umayyad caliphate (a caliphate is a region under the command of a Muslim ruler). It covered parts of what would be recognized today as the Middle East, Central Asia, Southern Europe, and Northern Africa. The empire takes its name from Abbas ibn Abd al-Muttalib, who was the youngest uncle of the prophet Muhammad.

7. Umayyad, 651-750, 4.29 million square miles

The Umayyad Empire stretched from Syria, Damascus, Maghreb, Iberian Peninsula, Sindh, Punjab, Transoxiana, and Caucasus. All these territories had a combined population of 62 million people (which was 29% of the world’s population) and covered an area of 4.29 million square miles. The Empire was secular.

6. Second French Empire, 1534-1980, 4.44 million square miles

France underwent tremendous growth and development between the First and Second Word Wars. In the early 1920s, French defeated Germany in the First World War with the help of the Allied powers. By 1924, means of agricultural and industrial production had developed extensively. The Great Depression hit France in 1931. After 1931, high levels of unemployment and political unrest became a national problem. The French Empire, which had once extended from Europe to Africa to North America to Asia, began to decolonize in the mid 20th century.

5. Spanish Empire, 1492-1975, 5.29 million square miles

The Spanish Empire was composed of colonies and territories of the Spanish Monarch distributed throughout the Americas, Asia, Africa, Oceania, the Greater Antilles, South America, and some Pacific Ocean Archipelagos such as the Philippines. The Spanish empire dominated the oceans and European battles, as it was able to partake in trade in the Atlantic, Indian and Pacific sea. Despite its size, the Empire was in constant fights with powers over territories, trade, or religion.

4. Qing Dynasty, 1644-1917, 5.68 million square miles

The Qing Dynasty was the last imperial rule in China. Under the leadership of Kangxi Emperor, the Empire was a world power thanks to its social, economic, and political means. At the time of the eighteenth century, the Qing Empire administered over 5 million square miles. Yongzheng converted Qing to an early modern state promoting Confucian orthodoxy and banning Christianity in 1723.

3. Russian Empire, 1721-1917, 8.8 million square miles

The Russia Empire was made up of Moscow, St. Petersburg, Russian Poland, the central European Russian regions, the Baltic cities, regions along lower Dnepr and Don rivers and the Southern Ural Mountains, covering an area of 8.8 million square miles. In 1861, the law allowed peasants to own the lands they were working on for their use, thus freeing them from their dependency on landowners. The farmers constituted four-fifths of the rural population, and the proclamation made Russia the largest cereal producer and exporter in the world.

2. Mongol Empire, 1206-1368, 9.27 million square miles

By the 1280s the Mongol Empire was the largest contiguous empire in the history of humankind covering an area of 9.27 million square miles. The empire covered the steppes of Central Asia, then stretched to the Sea of Japan, Central Europe, then finally westwards to Levant and Arabia. It extended northwards to Siberia, and southwards and eastwards to Indochina, Iranian Plateau, and the Indian subcontinent. The Mongol Empire started as groups of nomadic tribes united by Genghis Khan in 1206.

1. British Empire, 1497-1997, 13.71 million square miles

The British Empire was formed up of protectorates, colonies, dominions, mandates, and territories. By 1920s, at the height of its dominance, the whole empire covered more than 13 million square miles (24% of the earth’s area) which included territories in every continent. The self-governing nations of the Union of South Africa, Australia, Canada, New Zealand, and other colonies such as Kenya, Nigeria, India, Egypt, Sudan, Burma, and Singapore were all ruled from London. The British naval power controlled most of the key maritime trade routes and enjoyed unchallenged sea power. It also controlled many access routes to Asia and Latin America

Largest Empires In Human History By Land Area

RankEmpire NameYear of Peak sizeSize (Millions of Square Miles)
1British Empire192013.71
2Mongol Empire12709.27
3Russian Empire18958.8
4Qing Dynasty17905.68
5Spanish Empire18105.29
6Second French Empire19204.44
7Abbasid Caliphate7504.29
8Umayyad Caliphate7204.29
9Yuan Dynasty13104.25
10Portuguese Empire18154.02
11Xiongu Empire176 BCE3.47
12Empire of Brazil18893.22
13Eastern Han Dynasty1002.51
14Ming Dynasty14502.51
15Rashidun Caliphate14502.47
16Gokturk Khaganate5572.32
17Golden Horde Khanate13102.32
18Western Han Dynasty50 BCE2.32
19Achaemenid Empire500 BCE2.12
20Tang Dynasty7152.08
21Macedonian Empire323 BCE2.01
22Ottoman Empire16832.01
23Maurya Empire250 BCE1.93
24Roman Empire1171.93
25Tibetan Empire8001.78

Tuesday, August 13, 2019

What Is The Smallest Ocean?

The Arctic Ocean is the world's smallest ocean measuring in at only 5 million square miles.




The Arctic Ocean is the world's smallest ocean measuring in at only 5 million square miles. It is also the shallowest among the five major oceans on our planet. Part of the Arctic Ocean is covered by sea ice throughout the year and almost entirely in winter. 

Geography of the Arctic Ocean

The Arctic Ocean is located almost entirely in the geographic North Pole at the center of the northern hemisphere. The arctic is spread over an area of 5 million square miles with a coastline of about 28,200 miles. It is surrounded by land masses of Europe, Asia, North America, Greenland, and several other Arctic islands. The Arctic Ocean joins the Pacific Ocean through the Bering Strait. The Arctic’s connection to the Atlantic Ocean is through Greenland Sea and Labrador Sea. Russia, Norway, Iceland, Greenland, Canada, and the United States border the Arctic Ocean all having ports and harbors along the coastline.
The Arctic Ocean arctic shelves include the Russian continental shelf and the Canadian Arctic shelf among other shelves. The Russian continental shelf is the largest and is made of three smaller shelves; Siberian Shelf, Chukchi Sea Shelf and the Barents Shelf.
The North Polar Basin is divided underwater into two basins, the Eurasian Basin and the Amerasian Basin, by the Lomonosov Ridge. The mean depth of the Arctic Ocean approximately, 3,400 feet with the deepest point being the Litke Deep in the Eurasian Basin with a depth of 17,880 feet.

Climate, Animals and Plant Life of the Arctic Ocean

The Arctic Ocean is enclosed in a polar climate. Winters are extremely cold with polar nights while summers are characterized with midnight sun. Cyclones are frequent during summer and may result in rain and snow. On the surface of the Arctic Ocean, the temperatures are fairly constant at about -1.8 °C.
Animals found in the Arctic Ocean include fish, seals walruses, whales, Lion's mane jellyfish, and the banded gunnel. Little plant life is present except for the phytoplankton. The natural resources of the Arctic Ocean include petroleum, natural gas, placers, manganese nodules, and aggregates of sand and gravel.

Environmental Concerns

Over the years, the arctic ice has been thinning. The thinning leads to a fall in the earth’s mean albedo possibly resulting in global warming. It is feared that by 2040, the arctic may be free of ice for the first time in history. A rise in temperatures in the arctic could cause huge amounts of melt water to get into the North Atlantic leading to a disruption of the ocean currents. These disruptions may cause severe changes of weather on the planet.
Arctic ice serves to stabilize methane deposits near the shoreline. With the continuous thinning of the arctic ice, it is feared that Clathrate, a chemical substance made up of a lattice which traps and contains the gas, will be broken down causing release of methane into the atmosphere. Large amounts of methane in the atmosphere are dangerous are they could cause further warming making marine life to become extinct.

Monday, August 12, 2019

The Largest Lakes In The World By Volume




    A lake is defined as an area filled with water and surrounded by land, except for any inlets or outlets such as a river or stream. There are 11 major types of lakes that can be classified according to their formation and other characteristics. Lakes can also be ranked by volume or surface area. While a lake's surface area is relatively constant, its volume may change several times during the year. Therefore, since the volume of a lake changes, estimates of its volume can vary depending on the source and time of measurement. Some of the largest lakes in the world by volume are highlighted below.

    The Four Largest Lakes by Volume

    Caspian Sea

    The Caspian Sea has been classified as both a lake and a sea. However, it is the largest inland body of water in the world, and can be classified as the world’s largest lake in terms of both surface area and volume. The Caspian Sea is located between Asia and Europe, and covers an area of approximately 371,000 km2. It has an average volume of 78,200 km3, accounting for about 40% of the world’s lacustrine waters. The lake is fed by more than 130 rivers, the largest being the Volta River. The volume of water in the Caspian Sea is almost 3.5 times more than all five of the Great Lakes of North America combined.

    Lake Baikal

    Lake Baikal is situated in southern Siberia and is the world’s largest freshwater lake, accounting for about 22% of all fresh surface water in the world. With a volume of 23,615.39 km3, it is the world’s second-largest lake by volume. Lake Baikal is also the deepest lake in the world, with a maximum depth of 1,642 m. In terms of surface area, it ranks as the seventh-largest in the world, covering an area of approximately 31,722 km2.

    Lake Tanganyika

    Lake Tanganyika is a freshwater lake with a volume of 18,900 km3, ranking as the second-largest freshwater lake in the world by volume, after Lake Baikal. It is one of the African Great Lakes and is located within four countries, namely Zambia, Burundi, the Democratic Republic of the Congo (DRC), and Tanzania. Lake Tanganyika is also the second oldest and the second deepest lake in the world. The lake is drained by the Congo River system and ultimately empties into the Atlantic Ocean.

    Lake Superior

    Although Lake Superior is the second largest lake in the world by surface area, it is the fourth-largest by volume, with a volume of 12,000 km3. The lake is shared by the United States (US) and Canada and is one of the five Great Lakes of North America. Lake Superior drains into Lake Huron via the St. Mary's River. The lake is fed by more than 200 rivers, the largest of which include the Nipigon River, Pic River, Pigeon River, and the St. Louis River. 

    Causes of Change in Lake Volume

    The volume of most lakes around the world varies throughout the year and changes over time. One factor responsible for changes in volume is the season. During the dry season, some of the rivers or streams that feed a lake dry up, resulting in less water entering the lake, causing a net decrease in volume. However, during the rainy season, the number of rivers that drain into a lake increases, as well as the amount of rainwater that enters the lake, resulting in a volume increase. Other factors that affect a lake's volume include evaporation, diversion of rivers that feed the lake, increased water usage, and decreased depth.

    List of the 10 Largest Lakes in the World by Volume

    RankLakeWater Volume (km3)
    1Caspian Sea78,200
    2Baikal23,600
    3Tanganyika18,900
    4Superior11,600
    5Malawi7,725
    6Vostok5,400
    7Michigan4,920
    8Huron3,540
    9Victoria2,700
    10Great Bear Lake2,236

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