Notes and Study material for Exams
Photovoltaic Electricity Photovoltaic (PV) electricity is a type of solar energy that converts sunlight into electricity using semiconductors. PV cells are made of materials that allow electricity to flow when light hits them. When sunlight hits a PV cell, it knocks electrons loose from their atoms. These free electrons flow through the cell, creating an … Read more
Harnessing the Earth’s Inner Heat: A Deep Dive into Geothermal Energy Geothermal energy, derived from the Earth’s internal heat, is a clean, renewable, and reliable energy source with the potential to significantly contribute to global energy needs. This article delves into the intricacies of geothermal energy, exploring its origins, diverse applications, environmental benefits, and the … Read more
Harnessing the Sun’s Power: A Deep Dive into Solar Thermal Technology The sun, a constant source of energy, has long been recognized as a potential solution to our global energy needs. Solar thermal technology, which harnesses the sun’s heat to generate energy, offers a promising path towards a sustainable future. This article delves into the … Read more
Harnessing the Wind: A Comprehensive Look at Wind Farms Wind energy, a renewable and sustainable source of power, has emerged as a crucial player in the global fight against climate change. Wind farms, large-scale installations of wind turbines, are at the forefront of this energy revolution, transforming landscapes and powering homes and businesses alike. This … Read more
Safe Drinking And Supply Safe drinking water is the birthright of all humankind – as much a birthright as clean air. The majority of the world’s Population, however, does not have access to safe drinking water. This is certainly true in most parts of Africa and Asia. Even in relatively advanced countries such as India, … Read more
Charities The practice of charity means the voluntary giving of help to those in need, as a humanitarian act. There are instances in India, of great men, who gave their all to the cause of charity. One such man was Deshbandhu Chittaranjan Das, the great political leader and a renowned barrister. He donated … Read more
Harnessing the Ocean’s Thermal Gradient: A Deep Dive into Ocean Thermal Energy The Earth’s oceans are vast reservoirs of energy, absorbing and storing immense amounts of solar radiation. This energy manifests as a temperature difference between the warm surface waters and the cold depths, a phenomenon known as the ocean thermal gradient. This gradient, a … Read more