Vineesh V, Geography

Eratosthenes was a Greek mathematician and astronomer who lived in the 3rd century BCE. He is credited with many important discoveries, including the concept of latitude and longitude and the measurement of the Earth's circumference. Eratosthenes was curious about the size of the Earth and had heard that at noon on the summer solstice, the sun was directly overhead in the Egyptian city of Syene (now Aswan). He also knew that at the same time, in his hometown of Alexandria, the sun was not directly overhead but was at an angle. Eratosthenes realized that the difference in angle between the two locations could be used to determine the Earth's circumference. He knew the distance between Alexandria and Syene was approximately 800 km. Eratosthenes then measured the angle of the sun's rays in Alexandria at noon on the summer solstice and found it to be about 7.2 degrees from vertical. He assumed that the rays of the sun were parallel, and using simple trigonometry, he calculated

We are accepting applications for the Asian Development Bank-Japan Scholarship Program (ADB-JSP) for August 2023. Applicants can apply for postgraduate studies in economics, management, science and technology, and other development-related fields.  ✅Deadline: 31 March 2023 ➡️Learn more about ADB-JSP: https://bit.ly/3ZLKAlm ➡️Academic Programs at AIT: https://bit.ly/3ZPa3KJ ➡️Apply online: https://ait.ac.th/apply-online/ #ADB-JSP #AITAsia #scholarship

M.A./M.Sc. in Population Studies •M.Sc. in Bio-statistics and Demography •Master of Population Studies (MPS) •Ph.D. in Population Studies •Ph.D. in Bio-statistics and Demography •Part-time Ph.D. Programme •Post-Doctoral Fellowship (PDF) The International Institute for Population Sciences (IIPS) serves as a regional Institute for Training & Research in Population Studies.

Agrarian : People or societies that are farmers therefore promote agricultural interest ext. -Where agrarian people and societies are located is not generally near cities ext. but these types of people are essential to the way that we live and our ability to live in cities.    Agribusiness : Commercial agriculture characterized by integration of different steps in the food-processing industry, usually through ownership by large corporations.             - It influences how things are grown and what people eat   Agricultural Industrialization : The use of machinery in agriculture, like tractors ext.             - Makes it a lot faster for farmers to yield crop   Agricultural landscape : The land that we farm on and what we choose to put were on our fields.             - Effects how much yield one gets from their plants.   Agricultural location model :   Agricultural Origins : Through time nomadic people noticed the growing of plants in a cycle and began to domesticate them and use for t

Sorting describes the distribution of grain size of sediments, either in unconsolidated deposits or in sedimentary rocks. Very poorly sorted indicates that the sediment sizes are mixed (large variance); whereas well sorted indicates that the sediment sizes are similar (low variance) The terms describing sorting in sediments – very poorly sorted, poorly sorted, moderately sorted, well sorted, very well sorted – have technical definitions and semi-quantitatively describe the amount of variance seen in particle sizes.  In the field, sedimentologists use graphical charts to accurately describe the sorting of a sediment using one of these terms. The degree of sorting may also indicate the energy, rate, and/or duration of deposition, as well as the transport process (river, debris flow, wind, glacier, etc.) responsible for laying down the sediment.

GIS data contains more spatial information than needed for the scale of the map. Generalization is used in GIS to reduce detail in data. Generalization can be achieved by removing details such as minor roads, county boundaries, or small features like nooks and crannies of a coastline or meanderings of a stream. Generalization results in less spatial accuracy as the details are simplified. Calculations based on generalized data, such as length, perimeter, or area, may have errors. GIS data is often more detailed than necessary for creating maps at a certain scale. Generalization is the process of simplifying the data to make it more suitable for the purpose. For instance, for a small-scale map of the United States, it's not necessary to show every road or coastline in detail. Removing such minor details can be achieved through generalization. Generalization can involve removing minor details, showing only major features, or smoothing out lines. However, this process may lead to less

Top wheat producers in 2020 Country Millions of tonnes China 134.2 India 107.6 Russia 85.9 United States 49.7 Canada 35.2 France 30.1 Pakistan 25.2 Ukraine 24.9 Germany 22.2 Turkey 20.5 Wheat is widely cultivated cereal, spread from 57ºN to 47ºS latitude. Hence, wheat is cultivated and harvested throughout the year in one country or other. China, India, Russian federation, USA, France, Canada, Germany, Pakistan, Australia and Turkey are most important wheat growing countries. ECONOMIC IMPORTANCE Wheat is the world's number one cereal in area. Cultivation of wheat is as old as civilization. It is the first mentioned crop in Bible. Wheat is eaten in various forms by more than 1000 million people in the world. In India, it is second important staple food crop next to rice. In areas wheat is staple cereal food; it is eaten in the form of 'chapattis'. In areas where rice is the staple cereal food, wheat is eaten in the form

Abstract: Earthquakes are a natural hazard that can cause significant damage and loss of life. Mapping earthquakes using remote sensing and GIS is a useful tool for understanding and managing earthquake risk. In this paper, we present a case study of the Tohoku earthquake that occurred in Japan in 2011. We discuss the steps involved in mapping earthquakes using remote sensing and GIS and highlight the critical role that these technologies played in aiding the response and recovery efforts after the earthquake. The paper concludes by emphasizing the importance of mapping earthquakes using remote sensing and GIS for improving emergency response, planning, and policy decisions related to earthquake mitigation and disaster management. Introduction: Earthquakes are one of the most destructive natural hazards, causing significant damage to infrastructure and resulting in loss of life. Mapping earthquakes using remote sensing and GIS is a useful tool for understanding and managing earthquake