Online Educational Platform based on AI
Industrial hazards consist of four principle hazards. The hazards encountered are fire, explosion, toxic release and environmental damage. This is because industries engage in different processes involving a wide range of different raw materials, waste products and final products. Danger originates from technological or industrial accidents, dangerous procedures, infrastructure failures or certain human activities. It […]
Massive forest fires may start in hot and droughty weather as a result of lightning, and human carelessness or from other causal factors. Fires can lead to the destruction of buildings, wooden bridges and poles, power, transmission and telecommunication lines, warehouses of containing oil products and other fuel. It causes injury to people and animals. […]
Drowning Drowning is the 3rd leading cause of unintentional injury death worldwide, accounting for 7% of all injury-related deaths. There are an estimated 3,72,000 annual drowning deaths worldwide. Children, males and individuals with increased access to water are most at risk of drowning. Drowning is the process of experiencing respiratory impairment from submersion/immersion in liquid; […]
Disaters induced by human beings are man-made disasters. It includes fire accident, transport accident, structure failure, minining accidents, explosions, stampede etc. In this lesson, we study about some of the man-made disasters. Stampede The term stampede is a sudden rush of a crowd of people, usually resulting in injuries and death from suffocation and trampling. […]
Community is a group of people living in the same place having homogenous characteristics. It includes shared experiences, locality, culture, language and social interests. Communitybased disaster risk reduction is a process within a community and for the community. Reducing risk in communities should address the root causes of risks and address it through local knowledge […]
Introduction “Mumbai railway station stampede kills at least 22” “Rush-hour crush on footbridge connecting two stations was triggered by falling concrete that caused panic!” At least 22 people have been killed and more than 30 injured during a rush-hour stampede on a bridge between two railway stations in Mumbai. The crush occurred on a narrow […]
GNSS refers to the collection of the world’s global satellite based positioning systems. It includes GPS (United States) GLONASS (Russia) GALILEO (European Union) BEODOU (China) IRNSS (India) QZSS (Japan). GNSS can provide centimetre level accuracy with a low-cost receiver, if an error correction technique is used. GNSS are recognized to be the systems of choice […]
The functions of GIS describe the steps that have to be taken to implement a GIS. These steps have to be followed in order to obtain a systematic and efficient system. The steps involved are data capture, data storage (GIS Data Models), manipulation and analysis. Data Capture The input of data into a GIS can […]
The Geographic information systems have emerged in the past two decades as an essential tool for urban and resource planning and management. It includes the functions of data entry, data display, data management,information retrieval and analysis. While GIS deals with entire geography of the earth including land, ocean and atmosphere, the art, science and technology […]
Remote sensing platform The platform is a stage to mount the camera or sensor to acquire the information about a target under investigation. Based on the altitude above the earth surface, the platform can be classified as Ground borne platform, Air borne platform and Space borne platform. Ground borne platform Ground based platforms sensors may […]
solar sensors can only capture data during daylight hours. Active sensors are different from passive sensors. Unlike passive sensors, active sensors require the energy source to come from within the sensor. A laser-beam remote sensing system is an active sensor that sends out a beam of light with a known wavelength and frequency. This beam […]
Remote sensing is an integrated discipline encompassing some branches of arts, science and technology of collecting information about the terrestrial objects using camera and sensor system. Elements of Remote Sensing 1. Energy Source The primary requirement for remote sensing is to have an energy service, which provides electromagnetic energy to the target of interest. The […]
Introduction Geoinformatics is the integration of remote sensing, Global Navigation Satellite System and Geographic Information System dealing with spatial information. Th e advent of remote sensing, Global Navigation Satellite System and Geographic Information System has made signifi cant changes in surveying and map making. A basic understanding of these components is crucial for carrying out […]
Geopolitics: Global Strategic views The study of the way a country’s size, position, etc, influence its power and its relationships with other countries. Political activity is influenced by the physical features of a country or area of the world. Geo politics is concerned with how geographical factors including territory, population, strategic location, and natural resources […]
Frontiers: International frontiers and boundaries separate land, rivers and lakes subject to different sovereignties. In 1900 frontiers had almost disappeared and had been replaced by boundaries that are lines. A Frontier is a politico geographical area, lying beyond defined borders of a political unit into which expansion could take place. Boundaries: A boundary is a […]
Nation A nation is a group of people who see themselves as a cohesive and coherent unit based on shared cultural or historical criteria. Nations are socially constructed units, not given by nature. Their existence, definition, and members can change dramatically based on circumstances. Nations in some ways can be thought of as “imagined communities” […]
அடால்ஃப் ஹிட்லர் அடால்ஃப் ஹிட்லர் (Adolf Hitler, ஏப்ரல் 20, 1889- ஏப்ரல் 30 ,1945) ஜெர்மனியின் நாசிக் கட்சியின் தலைவராக விளங்கியவர். அவர் 1933-ஆம் ஆண்டு ஜெர்மனி நாட்டின் சான்சலராக நியமிக்கப்பட்டார். பின்பு 1934-ஆம் ஆண்டு, ஜெர்மனி நாட்டின் தலைவரானார்.1945-ஆம் ஆண்டு ஏப்ரல் 30 ந் தேதியன்று தற்கொலை செய்துக்கொண்டது வரை அவர் அப்பதவியில் தொடர்ந்தார். ஜெர்மனி நாட்டின் ஃபியூரர் என அழைக்கப்பட்டார். இரண்டாம் உலகப்போரின் இறுதியில் ஸ்டாலினின் செம்படைகளிடம் ஜெர்மன் தலைநகர் பெர்லினில் இட்லரின் […]
Tribes of Tamil Nadu are concentrated mainly in the district of Nilgiris. Of all the distinct tribes, the Kodas, the Thodas, the Irulas, the Kurumbas and the Badagas form the larger groups, who mainly had a pastoral existence. Other tribes include, Kattunayakan and Paliyan. According to census 2011, tribal population in Tamil Nadu is 7, […]
India is the home to large number of indigenous people, who are still untouched by the lifestyle of the modern world. With more than 84.4 million, India has the largest population of the tribal people in the world. T hese tribal people also known as the adivasis are the poorest in the country, which are […]
Ethnicity is a concept referring to a shared culture and a way of life. Th is can be refl ected in language, religion, material culture such as clothing and cuisine, and cultural products such as music and art. Ethnicity is oft en a major source of social cohesion and social confl ict. Th e world […]