Tigers (Panthera tigris) are one of the most magnificent and powerful big cats in the world. Known for their striking orange fur with black stripes, these solitary hunters are native to Asia and are an essential part of the ecosystem. However, despite their strength and adaptability, tigers are endangered due to habitat loss, poaching, and human-wildlife conflict. Physical Characteristics Tigers are the largest members of the cat family (Felidae). They can grow up to 3.3 meters (11 feet) in length, including their tails, and weigh between 100 to 300 kilograms (220 to 660 pounds), depending on the subspecies. Their muscular bodies, sharp claws, and powerful jaws make them formidable predators. Each tiger has a unique pattern of stripes, much like human fingerprints, which helps researchers identify individuals in the wild. Habitat and Distribution Tigers inhabit a wide range of environments, including tropical rainforests, mangrove swamps, grasslands, and temperate forests. Hist...
Wood has been a primary source of heat for humans for thousands of years. Even with modern heating technologies, wood remains an important and sustainable fuel in many parts of the world. This article explores how wood produces heat, its efficiency compared to other fuels, and its environmental impact. How Wood Produces Heat When wood burns, a chemical reaction called combustion takes place. This process releases energy stored in the wood in the form of heat. The main components of wood—cellulose, hemicellulose, and lignin—break down during burning, producing heat, light, and gases like carbon dioxide and water vapor. There are three main stages of wood combustion: 1. Drying (Moisture Evaporation) – Before wood can burn effectively, its moisture content must evaporate. Dry wood burns more efficiently than wet wood. 2. Pyrolysis (Gas Release) – As the temperature rises, wood begins to decompose and release gases that ignite and produce flames. 3. Charcoal Combustion – After ...