The Indian Council of Agricultural Research (ICAR)
has established 44 Agricultural Technology Information Centres (ATICs)
in 28 Agricultural Universities and 16 ICAR Institutes in the country.
The ICAR has also created a network of 630 Krishi Vigyan Kendra (KVK) in
the country to facilitate farmers’ access to agricultural technology
generated by National Agricultural Research System.
The Department of Agriculture & Cooperation is implementing Kisan
Call Centre (KCC) programme under which Agriculture related information
is provided to the farmers in 22 regional languages through a
countrywide common toll free number 1800-180-1551 covering all the
States and Union Territory of India. The KCCs established at 13
locations in the country operate from 6.00AM to 10.00 PM on all 365 days
in a year. The Kisan Call Centre located in Kanpur district of Uttar
Pradesh caters to all the farmers of Uttar Pradesh and Uttarakhand.
Pages
▼
Friday, August 24, 2012
Castle Naggar in Himachal Pradesh was given Heritage Status
The Castle Naggar, Himachal Pradesh Tourism Development Corporation's
prime hotel in the picturesque Kullu valley, was notified under the
heritage status by the Union Tourism ministry on 23 August 2012. Naggar
was the capital of the erstwhile Kullu state for about 1460 years.
The castle was built by Raja Sidhi Singh in the 16th century. The castle has traditional architecture called Kathloonmi, which uses a combination of stones and wooden beams. The castle was handed over to state-owned HPTDC in 1978 to be run as a hotel.
The castle was built by Raja Sidhi Singh in the 16th century. The castle has traditional architecture called Kathloonmi, which uses a combination of stones and wooden beams. The castle was handed over to state-owned HPTDC in 1978 to be run as a hotel.
Wednesday, August 22, 2012
Indian Magsaysay Award Winners
Name
|
Year Awarded
|
Category
|
Vinoba Bhave |
1958
|
Community Leadership |
Chintaman Deshmukh |
1959
|
Government Services |
Amitabha Chowdhury |
1961
|
Journalism, Literature and Creative Communication Arts |
Mother Teresa |
1962
|
Peace and International Understanding |
Dara Khurody |
1963
|
Community Leadership |
Verghese Kurien |
1963
|
Community Leadership |
Tribhuvandas Patel |
1963
|
Community Leadership |
Welthy Fisher |
1964
|
Peace and International Understanding |
Jayaprakash Narayan |
1965
|
Public Service |
Kamaladevi Chattopadhyay |
1966
|
Community Leadership |
Satyajit Ray |
1967
|
Journalism, Literature and Creative Communication Arts |
Moncompu Sambasivan Swaminathan |
1971
|
Community Leadership |
M. S. Subbulakshmi |
1974
|
Public Service |
Boobli George Verghese |
1975
|
Journalism, Literature and Creative Communication Arts |
Henning Holck-Larsen |
1976
|
Peace and International Understanding |
Sombhu Mitra |
1976
|
Journalism, Literature and Creative Communication Arts |
Ela Ramesh Bhatt |
1977
|
Community Leadership |
Mabelle Arole |
1979
|
Community Leadership |
Rajanikant Arole |
1979
|
Community Leadership |
Gour Kishore Ghosh |
1981
|
Journalism, Literature and Creative Communication Arts |
Pramod Karan Sethi |
1981
|
Community Leadership |
Chandi Prasad Bhatt |
1982
|
Community Leadership |
Manibhai Desai |
1982
|
Public Service |
Arun Shourie |
1982
|
Journalism, Literature and Creative Communication Arts |
Rasipuram Lakshman |
1984
|
Journalism, Literature and Creative Communication Arts |
Muralidhar Amte |
1985
|
Public Service |
Lakshmi Chand Jain |
1989
|
Public Service |
K. V. Subbanna |
1991
|
Journalism, Literature and Creative Communication Arts |
Ravi Shankar |
1992
|
Journalism, Literature and Creative Communication Arts |
Banoo Jehangir Coyaji |
1993
|
Public Service |
Kiran Bedi |
1994
|
Government Services |
Pandurang Athavale |
1996
|
Community Leadership |
Tirunellai Seshan |
1996
|
Government Services |
Mahasweta Devi |
1997
|
Journalism, Literature and Creative Communication Arts |
Mahesh Chander Mehta |
1997
|
Public Service |
Jockin Arputham |
2000
|
Peace and International Understanding |
Aruna Roy |
2000
|
Community Leadership |
Rajendra Singh |
2001
|
Community Leadership |
Sandeep Pandey |
2002
|
Emergent Leadership |
James Michael Lyngdoh |
2003
|
Government Services |
Shantha Sinha |
2003
|
Community Leadership |
Laxminarayan Ramdas |
2004
|
Peace and International Understanding |
V. Shantha |
2005
|
Public Service |
Arvind Kejriwal |
2006
|
Emergent Leadership |
Palagummi Sainath |
2007
|
Journalism, Literature and Creative Communication Arts |
Mandakini Amte | 2008 | Community Leadership |
Prakash Amte | 2008 | Community Leadership |
Deep Joshi | 2009 | Community Leadership |
Neelima Mishra | 2011 | Emergent Leadership |
Harish Hande | 2011 | Emergent Leadership |
Kulandei Francis | 2012 | Community Leadership |
Sunday, August 19, 2012
List of Rajiv Gandhi Khel Ratna Awardees
The Rajiv Gandhi Khel Ratna (RGKR) is India’s highest honour given for
achievement in sports. The words "Khel Ratna" literally mean "sports
gem" in Hindi. The award is named after the late Rajiv Gandhi, former
Prime Minister of India. It carries a medal, a scroll of honour and a
substantial cash component. Up to 2004–05, the cash component was Rs.
500,000/- (c.11,500 USD).The money has been increased from Rs. 500,000
to Rs. 750,000.
List of Rajiv Gandhi Khel Ratna Awardees
Year | Name of the Sportsperson(s) | Sport Discipline |
1991–92 | Viswanathan Anand | Chess |
1992–93 | Geet Sethi | Billiards |
1993–94 |
Not Conferred
|
|
1994–95 | Cdr. Homi D. Motivala (Joint) | Yachting (Team Event) |
Lt. Cdr. P. K. Garg (Joint) | ||
1995–96 | Karnam Malleswari | Weightlifting |
1996–97 | Nameirakpam Kunjarani (Joint) | Weightlifting |
Leander Paes (Joint) | Tennis | |
1997–98 | Sachin Tendulkar | Cricket |
1998–99 | Jyotirmoyee Sikdar | Athletics |
1999–2000 | Dhanraj Pillay | Hockey |
2000–01 | Pullela Gopichand | Badminton |
2001–02 | Abhinav Bindra | Shooting |
2002–03 | Anjali Ved Pathak Bhagwat(Joint) | Shooting |
K. M. Beenamol (Joint) | Athletics | |
2003–04 | Anju Bobby George | Athletics |
2004–05 | Lt. Col Rajyavardhan Singh Rathore | Shooting |
2005–06 | Pankaj Advani | Billiards and Snooker |
2006–07 | Manavjit Singh Sandhu | Shooting |
2007–08 | Mahendra Singh Dhoni | Cricket |
2008–09 | Mary Kom (Joint) | Boxing |
Vijender Singh (Joint) | Boxing | |
Sushil Kumar (Joint) | Wrestling | |
2009–10 | Saina Nehwal | Badminton |
2010–11 | Gagan Narang | Shooting |
2011–12 | Vijay Kumar (Joint) | Shooting |
Yogeshwar Dutt (Joint) | Wrestling |
Friday, August 17, 2012
Welfare Schemes for Women
Many welfare schemes for women are implemented by
Government of India, State Governments and Union Territory
Administrations. The details of major schemes under implementation by
Ministry of Women and Child Development for the welfare of women are as
under :
i. RAJIV GANDHI NATIONAL CRECHE SCHEME FOR THE CHILDREN OF WORKING MOTHERS (RGNCS) provides day care facilities to the children in the age group 0-6 years from families with monthly income of less than 12000/-. In addition to being a safe space for the children, the crèches provide services such as supplementary nutrition, pre-school education and emergency health care, etc.
ii. CENTRAL SOCIAL WELFARE BOARD: The main women welfare related schemes and programmes being implemented by CSWB are family counselling centres, awareness generation programme and condensed courses of education for women.
iii. NATIONAL MISSION FOR EMPOWERMENT OF WOMEN (NMEW) is an initiative of the Government of India for empowering women holistically. It is a Centrally Sponsored Scheme sanctioned in April 2011 and acts as an umbrella Mission with a mandate to strengthen inter-sectoral convergence.
iv. WORKING WOMEN’S HOSTEL (WWH) Scheme envisages provision of safe and affordable hostel accommodation to working women, single working women, women working at places away from their home-towns and for women being trained for employment.
v. SUPPORT TO TRAINING AND EMPLOYMENT PROGRAMME (STEP) for Women was launched as a Central Sector Scheme during 1986-87. It aims at making a significant impact on women by upgrading skills for self and wage employment. The target group includes the marginalized assetless rural women and urban poor.
vi. RASHTRIYA MAHILA KOSH (RMK) with a corpus of Rs.100 crore extends micro-finance services to bring about the socio-economic upliftment of poor women.
vii. INDIRA GANDHI MATRITVA SAHYOG YOJANA (IGMSY) is a Conditional Cash Transfer scheme for pregnant and lactating (P&L) women introduced in the October 2010 to contribute to better enabling environment by providing cash incentives for improved health and nutrition to pregnant and nursing mothers.
viii. SWADHAR SCHEME: The Ministry of Women and Child Development had been administering Swadhar scheme since 2001 for Women in difficult circumstances. Under the Scheme, temporary accommodation, maintenance and rehabilitative services are provided to women and girls rendered homeless due to family discord, crime, violence, mental stress, social ostracism. Another scheme with similar objectives/target groups namely Short Stay Home (SSH) is being implemented by Central Social Welfare Board.
ix. UJJAWALA is a comprehensive scheme for prevention of trafficking and rescue, rehabilitation and reintegration of victims of trafficking for commercial sexual exploitation.
i. RAJIV GANDHI NATIONAL CRECHE SCHEME FOR THE CHILDREN OF WORKING MOTHERS (RGNCS) provides day care facilities to the children in the age group 0-6 years from families with monthly income of less than 12000/-. In addition to being a safe space for the children, the crèches provide services such as supplementary nutrition, pre-school education and emergency health care, etc.
ii. CENTRAL SOCIAL WELFARE BOARD: The main women welfare related schemes and programmes being implemented by CSWB are family counselling centres, awareness generation programme and condensed courses of education for women.
iii. NATIONAL MISSION FOR EMPOWERMENT OF WOMEN (NMEW) is an initiative of the Government of India for empowering women holistically. It is a Centrally Sponsored Scheme sanctioned in April 2011 and acts as an umbrella Mission with a mandate to strengthen inter-sectoral convergence.
iv. WORKING WOMEN’S HOSTEL (WWH) Scheme envisages provision of safe and affordable hostel accommodation to working women, single working women, women working at places away from their home-towns and for women being trained for employment.
v. SUPPORT TO TRAINING AND EMPLOYMENT PROGRAMME (STEP) for Women was launched as a Central Sector Scheme during 1986-87. It aims at making a significant impact on women by upgrading skills for self and wage employment. The target group includes the marginalized assetless rural women and urban poor.
vi. RASHTRIYA MAHILA KOSH (RMK) with a corpus of Rs.100 crore extends micro-finance services to bring about the socio-economic upliftment of poor women.
vii. INDIRA GANDHI MATRITVA SAHYOG YOJANA (IGMSY) is a Conditional Cash Transfer scheme for pregnant and lactating (P&L) women introduced in the October 2010 to contribute to better enabling environment by providing cash incentives for improved health and nutrition to pregnant and nursing mothers.
viii. SWADHAR SCHEME: The Ministry of Women and Child Development had been administering Swadhar scheme since 2001 for Women in difficult circumstances. Under the Scheme, temporary accommodation, maintenance and rehabilitative services are provided to women and girls rendered homeless due to family discord, crime, violence, mental stress, social ostracism. Another scheme with similar objectives/target groups namely Short Stay Home (SSH) is being implemented by Central Social Welfare Board.
ix. UJJAWALA is a comprehensive scheme for prevention of trafficking and rescue, rehabilitation and reintegration of victims of trafficking for commercial sexual exploitation.
Thursday, August 9, 2012
Integrated Nutrient Management (Fertilizers)
The main objective of Integrated Nutrient Management (INM) Division
is to ensure adequate availability of quality fertilizers to farmers
through periodical demand assessment and timely supply, promoting
integrated nutrient management, which is soil test-based judicious and
balanced use of chemical fertilizers in conjunction with organic manures
and bio-fertilizers, promotion of organic farming and ensuring quality
control of fertilizers through implementation of Fertilizer (Control)
Order, 1985.
There are 686 Soil Testing Laboratories (2007-08) in India. These include 560 static and 126 mobile Laboratories maintained by State Governments and fertilizer industry with an annual analyzing capacity of about 7 million soil samples. During 2008-09, an amount of Rs.16.63 crore has been released under NPMSF for 42 new Static Soil Testing Laboratories (STLs), 44 Mobile Soil Testing Laboratories (MSTLs), strengthening of 39 existing soil testing laboratories, 2 new fertilizer quality control laboratories and strengthening of 19 existing fertilizers quality control laboratories (FQCLs) in 16 States.
Fertiliser Consumption
India is the third largest producer and consumer of fertilizers in the world after China and the USA. Against 21.65 million tonnes of fertilizer nutrients (NPK) consumed during 2006-07, the nutrient consumption is 22.57 million tonnes during 2007-08. The consumption of major fertilizers namely, Urea, DAP, MOP, SSP and Complexes were 25.96, 7.50, 2.88, 2.29 and 6.57 million tonnes during 2007-08. India is by and large self sufficient in respect of Urea and about 90 per cent in case of DAP. The all India average fertilizer consumption is 116.5 kg/ha of NPK nutrients, though there is wide variation from state to state varying from 212.7 kg/ha in Punjab, 208.2 kg/ha in Andhra Pradesh, 190.9 kg/ha in Haryana to less than 5 kg/ha in States like Arunachal Pradesh and Nagaland etc. Considering the skewed pattern of fertilizer use, Government of India is promoting balanced and integrated use of fertilizer nutrient through various initiatives. As a result, NPK consumption ration has now improved to 5.5:2.1:1 during 2007-08 from 7.0:2.7:1 during 2000-01.Price of Fertilizers
Presently urea is the only fertilizer which is under Statutory Price Control. To ensure adequate availability of fertilizers to farmers at reasonable rates, subsidy is provided by Government of India. Urea, the most consumed fertilizers, is subsidized under the New Urea Pricing Scheme, whereas P&K fertilizers, which are decontrolled, are covered under the Concession Scheme. The policy for uniform freight subsidy on all fertilizers under the fertilizer subsidy regime is also implemented.Buffer Stocking of P&K Fertilizers
A buffer stock of limited quantity of Di-Ammonium Phosphate (DAP) and Muriate of Potash (MOP) is being maintained at strategic locations to met emergent requirements. These stocks are in the nature of rolling stocks and are replenished when depleted. Besides meeting emergent needs, the Buffer Stock also helps to meet requirements of States which have low demand and hence sometimes find it difficult to induce suppliers to move fertilizers in small quantities.Fertiliser Quality Control
Fertilizer is the most critical and costly input for sustaining agricultural production and ensuring food security of the country. The Government ensures the quality of fertilizers through Fertilizer Control Order (FCO), issued under Essential Commodities Act, 1955 to regulate, the trade, price, quality and distribution of fertilizers in the country. The State Governments are the enforcement agencies for implementation of the provisions of FCO, 1985. The Order strictly prohibits the manufacture, import and sale of any fertilizer, which does not meet prescribe standards. The FCO provides for compulsory registration of fertilizer manufacturers, importers and dealers, specifications of all fertilizes manufactured/imported and sold in the country, regulation on manufacture of fertilizer mixtures, packing and marking on the fertilizer bags, appointment of enforcement agencies, setting up of quality control laboratories and prohibition on manufacture/import and sale of non-standard/spurious/adulterated fertilizers. To check the quality of fertilizes sold in the country, there are 71 Fertilizer Quality Control Laboratories at present, which includes 4 Central Government laboratories namely; Central Fertilizer Quality Control & Traiing Institute, Faridabad and is three Regional Laboratories at Chennai, Navi Mumbai and Kalyani (Near Kolkata). These laboratories have a total annual analyzing capacity of 1.31 lakh samples.Promotion of Integrated Nutrient Management (INM)
The Government is promoting soil test-based balanced and judicious use of chemical fertilizers, biofertilizers and locally available organic manures like farmyard manure, compost, nadep compost, vermi compost and green manure to maintain soil health and its productivity. A Centrally Sponsored Scheme, "National Project on Management of Soil Health and Fertility" (NPMSF) has been approved during 2008-09 with an outlay of Rs.429.85 crores for the remaining period of XI Plan. The two existing schemes namely: i) centrally sponsored scheme of Balanced and Integrated Use of Fertilizers and ii) Central Sector Scheme "Strengthening of Central Fertilizer and Quality Control & Traiing Institutes and its Regional Labs. have been subsumed in the new scheme w.e.f. 1.4.2009. The components of the new scheme include setting up of 500 new soil testing laboratories, strengthening of the existing 315 soil testing laboratories, setting up of 250 mobile soil testing laboratories, promotion of organic manures, soil amendments and distribution of micro nutrients, setting up of 20 new fertilizers quality control laboratories and strengthening of 63 existing fertilizer quality control laboratories during 11th Plan.There are 686 Soil Testing Laboratories (2007-08) in India. These include 560 static and 126 mobile Laboratories maintained by State Governments and fertilizer industry with an annual analyzing capacity of about 7 million soil samples. During 2008-09, an amount of Rs.16.63 crore has been released under NPMSF for 42 new Static Soil Testing Laboratories (STLs), 44 Mobile Soil Testing Laboratories (MSTLs), strengthening of 39 existing soil testing laboratories, 2 new fertilizer quality control laboratories and strengthening of 19 existing fertilizers quality control laboratories (FQCLs) in 16 States.
National Project on Organic Farming
With the view to promote organic farming practices to reduce the
burden on Chemical Fertilizers, to ensure effective utilization of farm
resources and to cater domestic and international growing Organic Food
Market, a National Project on Organic Farming was launched during 10th
Plan with an outlay of Rs.115.00 crores. The earlier scheme "National Project on Development and Use of Biofertilizers" has been merged with the "National Project on Organic Farming ". The main objective of the scheme includes:
Under the scheme a capacity has also been created for processing of 708 tons of agricultural waste per day in to compost, 5606 MT of bio-fertilizers and more than 17000 ton of vermiculture and vermicompost. Since the launch of the scheme, the area under certified organic farming has increased 20 fold from 42000 ha (2003-04) to 865,000 ha (2007-08). The organic food production has increased from 4.09 lakh ton in 2006-07 to 9.02 lakh ton during 2007-08.
- Capacity Building through Service Providers.
- Financial and Technical support for setting up of organic input production unit such as Fruits and Vegetable market waste compost, Biofertilizers and biopesticides and Vermiculture hatcheries.
- Human resource development through training and demonstration.
- Awareness creation and market development.
- Quality Control of Organic Inputs.
Under the scheme a capacity has also been created for processing of 708 tons of agricultural waste per day in to compost, 5606 MT of bio-fertilizers and more than 17000 ton of vermiculture and vermicompost. Since the launch of the scheme, the area under certified organic farming has increased 20 fold from 42000 ha (2003-04) to 865,000 ha (2007-08). The organic food production has increased from 4.09 lakh ton in 2006-07 to 9.02 lakh ton during 2007-08.
Saturday, August 4, 2012
Genetics
Genetics (from Ancient Greek genetikos, “genitive” and that from genesis, “origin”), a discipline of biology, is the science of genes, heredity, and variation in living organisms. Genetics deals with the molecular structure and function of genes, with gene behavior in the context of a cell or organism (e.g. dominance and epigenetics), with patterns of inheritance from parent to offspring, and with gene distribution, variation and change in populations. Given that genes are universal to living organisms, genetics can be applied to the study of all living systems, from viruses and bacteria, through plants (especially crops) and domestic animals, to humans (as in medical genetics).
The fact that living things inherit traits from their parents has been used since prehistoric times to improve crop plants and animals through selective breeding. However, the modern science of genetics, which seeks to understand the process of inheritance, only began with the work of Gregor Mendel in the mid-19th
century. Although he did not know the physical basis for heredity, Mendel observed that organisms inherit traits via discrete units of inheritance, which are now called genes. Genes correspond to regions within DNA, a molecule composed of a chain of four different types of nucleotides: the sequence of these nucleotides is the genetic information organisms inherit. DNA naturally occurs in a double stranded form, with nucleotides on each strand complementary to each other. Each strand can act as a template for creating a new partner strand.
This is the physical method for making copies of genes that can be inherited. The sequence of nucleotides in a gene is translated by cells to produce a chain of amino acids, creating proteins— the order of amino acids in a protein corresponds to the order of nucleotides in the gene. This relationship between nucleotide sequence and amino acid sequence is known as the genetic code. The amino acids in a protein determine how it folds into a three-dimensional shape; this structure is, in turn, responsible for the protein’s function. Proteins carry out almost all the functions needed for cells to live. A change to the DNA in a gene can change a protein’s amino acids, changing its shape and function: this can have a dramatic effect in the cell and on the organism as a whole. Although genetics plays a large role in the appearance and behavior of organisms, it is the combination of genetics with what an organism experiences that determines the ultimate outcome. For example, while genes play a role in determining an organism’s size, the nutrition and health it experiences after inception also have a large effect.
The fact that living things inherit traits from their parents has been used since prehistoric times to improve crop plants and animals through selective breeding. However, the modern science of genetics, which seeks to understand the process of inheritance, only began with the work of Gregor Mendel in the mid-19th
century. Although he did not know the physical basis for heredity, Mendel observed that organisms inherit traits via discrete units of inheritance, which are now called genes. Genes correspond to regions within DNA, a molecule composed of a chain of four different types of nucleotides: the sequence of these nucleotides is the genetic information organisms inherit. DNA naturally occurs in a double stranded form, with nucleotides on each strand complementary to each other. Each strand can act as a template for creating a new partner strand.
This is the physical method for making copies of genes that can be inherited. The sequence of nucleotides in a gene is translated by cells to produce a chain of amino acids, creating proteins— the order of amino acids in a protein corresponds to the order of nucleotides in the gene. This relationship between nucleotide sequence and amino acid sequence is known as the genetic code. The amino acids in a protein determine how it folds into a three-dimensional shape; this structure is, in turn, responsible for the protein’s function. Proteins carry out almost all the functions needed for cells to live. A change to the DNA in a gene can change a protein’s amino acids, changing its shape and function: this can have a dramatic effect in the cell and on the organism as a whole. Although genetics plays a large role in the appearance and behavior of organisms, it is the combination of genetics with what an organism experiences that determines the ultimate outcome. For example, while genes play a role in determining an organism’s size, the nutrition and health it experiences after inception also have a large effect.
Carbon Dating
Carbon dating is a radiometric dating method that uses the naturally occurring radioisotope carbon-14 (14C) to estimate the age of carbonbearing materials up to about 58,000 to 62,000 years. Raw, i.e. uncalibrated, radiocarbon ages are usually reported in radiocarbon years “Before Present” (BP), “Present” being defined as 1950. Such raw ages can be calibrated to give calendar dates.
One of the most frequent uses of radiocarbon dating is to estimate the age of organic remains from archaeological sites. When plants fix atmospheric carbon dioxide into organic material during photosynthesis they incorporate a quantity of 14C that approximately matches the level of this isotope in the atmosphere (a small difference occurs because of isotope fractionation, but this is corrected after laboratory analysis[citation needed]). After plants die or they are consumed by other organisms (for example, by humans or other animals) the 14C fraction of this organic material declines at a fixed exponential rate due to the radioactive decay of 14C. Comparing the remaining 14C fraction of a sample to that expected from atmospheric 14C allows the age of the sample to be estimated.
The technique of radiocarbon dating was developed by Willard Libby and his colleagues at the University of Chicago in 1949. Emilio Segrè asserted in his autobiography that Enrico Fermi suggested the concept to Libby in a seminar at Chicago that year. Libby estimated that the steady state radioactivity concentration of exchangeable carbon-14 would be about 14 disintegrations per minute (dpm) per gram.
In 1960, he was awarded the Nobel Prize in chemistry for this work. He first demonstrated the accuracy of radiocarbon dating by accurately estimating the age of wood from an ancient Egyptian royal barge for which the age was known from historical documents.
One of the most frequent uses of radiocarbon dating is to estimate the age of organic remains from archaeological sites. When plants fix atmospheric carbon dioxide into organic material during photosynthesis they incorporate a quantity of 14C that approximately matches the level of this isotope in the atmosphere (a small difference occurs because of isotope fractionation, but this is corrected after laboratory analysis[citation needed]). After plants die or they are consumed by other organisms (for example, by humans or other animals) the 14C fraction of this organic material declines at a fixed exponential rate due to the radioactive decay of 14C. Comparing the remaining 14C fraction of a sample to that expected from atmospheric 14C allows the age of the sample to be estimated.
The technique of radiocarbon dating was developed by Willard Libby and his colleagues at the University of Chicago in 1949. Emilio Segrè asserted in his autobiography that Enrico Fermi suggested the concept to Libby in a seminar at Chicago that year. Libby estimated that the steady state radioactivity concentration of exchangeable carbon-14 would be about 14 disintegrations per minute (dpm) per gram.
In 1960, he was awarded the Nobel Prize in chemistry for this work. He first demonstrated the accuracy of radiocarbon dating by accurately estimating the age of wood from an ancient Egyptian royal barge for which the age was known from historical documents.
Earth Basic Facts
Earth’s Circumference at the Equator: 24,901.55 miles (40,075.16 km)
Earth’s Circumference Between the North and South Poles: 24,859.82 miles (40,008 km)
Earth’s Diameter at the Equator: 7,926.28 miles (12,756.1 km)
Earth’s Diameter at the Poles: 7,899.80 miles (12,713.5 km)
Average Distance from the Earth to the Sun: 93,020,000 miles (149,669,180 km)
Average Distance from the Earth to the Moon: 238,857 miles (384,403.1 km)
Highest Elevation on Earth - Mt. Everest, Asia: 29,035 feet (8850 m)
Tallest Mountain on Earth from Base to Peak - Mauna Kea, Hawaii: 33,480 feet (rising to 13,796 feet above sea level) (10204 m; 4205 m)
Point Farthest From the Center of the Earth - The peak of the volcano Chimborazo in Ecuador at 20,561 feet (6267 m) is farthest from the center of the earth due to its location near the equator, and the oblateness of the Earth.
Lowest Elevation on Land - Dead Sea: 1369 feet below sea level (417.27 m)
Deepest Point in the Ocean - Challenger Deep, Mariana Trench, Western Pacific Ocean: 35,840 feet (10924 m)
Highest Temperature Recorded: 135.8°F - Al Aziziyah, Libya, September 13, 1922 (57.7°C)
Lowest Temperature Recorded: -128.5°F - Vostok, Antarctica, July 21, 1983 (-89.2°C)
Water vs. Land: 70.8% Water, 29.2% Land
Age of the Earth: 4.5 to 4.6 billion years
Atmosphere Content: 77% nitrogen, 21% oxygen, and traces of argon, carbon dioxide and water
Revolution around Sun: 365.2425 days
Chemical Composition of the Earth:
34.6% Iron,
29.5% Oxygen,
15.2% Silicon,
12.7% Magnesium,
2.4% Nickel,
1.9% Sulfur,
0.05% Titanium
Rotation on Axis: 23 hours and 56 minutes and 04.09053 seconds. But, it takes an additional four minutes for the earth to revolve to the same position as the day before relative to the sun (i.e. 24 hours).
Earth’s Circumference Between the North and South Poles: 24,859.82 miles (40,008 km)
Earth’s Diameter at the Equator: 7,926.28 miles (12,756.1 km)
Earth’s Diameter at the Poles: 7,899.80 miles (12,713.5 km)
Average Distance from the Earth to the Sun: 93,020,000 miles (149,669,180 km)
Average Distance from the Earth to the Moon: 238,857 miles (384,403.1 km)
Highest Elevation on Earth - Mt. Everest, Asia: 29,035 feet (8850 m)
Tallest Mountain on Earth from Base to Peak - Mauna Kea, Hawaii: 33,480 feet (rising to 13,796 feet above sea level) (10204 m; 4205 m)
Point Farthest From the Center of the Earth - The peak of the volcano Chimborazo in Ecuador at 20,561 feet (6267 m) is farthest from the center of the earth due to its location near the equator, and the oblateness of the Earth.
Lowest Elevation on Land - Dead Sea: 1369 feet below sea level (417.27 m)
Deepest Point in the Ocean - Challenger Deep, Mariana Trench, Western Pacific Ocean: 35,840 feet (10924 m)
Highest Temperature Recorded: 135.8°F - Al Aziziyah, Libya, September 13, 1922 (57.7°C)
Lowest Temperature Recorded: -128.5°F - Vostok, Antarctica, July 21, 1983 (-89.2°C)
Water vs. Land: 70.8% Water, 29.2% Land
Age of the Earth: 4.5 to 4.6 billion years
Atmosphere Content: 77% nitrogen, 21% oxygen, and traces of argon, carbon dioxide and water
Revolution around Sun: 365.2425 days
Chemical Composition of the Earth:
34.6% Iron,
29.5% Oxygen,
15.2% Silicon,
12.7% Magnesium,
2.4% Nickel,
1.9% Sulfur,
0.05% Titanium
Rotation on Axis: 23 hours and 56 minutes and 04.09053 seconds. But, it takes an additional four minutes for the earth to revolve to the same position as the day before relative to the sun (i.e. 24 hours).
Summer Olympics - 27 July 2012
The 2012 Summer Olympic Games, officially known as the Games of the XXX Olympiad, are scheduled to take place in London, England, United Kingdom, from 27 July to 12 August 2012. London will become the first city to officially host the modern Olympic Games three times, having previously done so
in 1908 and in 1948. London was selected as the host city on 6 July 2005 during the 117th IOC Session in
Singapore, defeating Moscow, New York City, Madrid and Paris after four rounds of voting. The successful bid was headed by former Olympic champion Sebastian Coe.
The Olympics prompted a redevelopment of many of the areas of London in which the games are to be held – particularly themed towards sustainability. While the budgetary considerations have generated some criticism, the Games will make use of many venues which were already in place before the bid, including Wembley Stadium, Wembley Arena, Wimbledon All England Club, Lord’s Cricket Ground, The O2 Arena, Earls Court Exhibition Centre, Weymouth and Portland National Sailing Academy, and the Excel Centre.
in 1908 and in 1948. London was selected as the host city on 6 July 2005 during the 117th IOC Session in
Singapore, defeating Moscow, New York City, Madrid and Paris after four rounds of voting. The successful bid was headed by former Olympic champion Sebastian Coe.
The Olympics prompted a redevelopment of many of the areas of London in which the games are to be held – particularly themed towards sustainability. While the budgetary considerations have generated some criticism, the Games will make use of many venues which were already in place before the bid, including Wembley Stadium, Wembley Arena, Wimbledon All England Club, Lord’s Cricket Ground, The O2 Arena, Earls Court Exhibition Centre, Weymouth and Portland National Sailing Academy, and the Excel Centre.