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National Bird Day: Why Birds Matter to Us

National Bird Day is celebrated every year on 5 January . This day is observed to spread awareness about birds, their importance in nature, and the need to protect them. Birds are beautiful living beings and play a very important role in keeping our environment healthy. Origin of National Bird Day National Bird Day was first celebrated in the year 2002 . It was started by bird lovers and environmental groups to protect birds from dangers like deforestation, pollution, and illegal hunting. The main aim of this day is to teach people, especially students, why birds are important and how we can help save them. Why Is National Bird Day Celebrated Every Year? National Bird Day is celebrated every year because many bird species are disappearing due to human activities. Cutting trees, using plastic, pollution, and climate change are harming birds and their homes. This day reminds us that: Birds need protection Nature should be respected Everyone has a responsibil...
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Mean kinetic energy of translation


  • According to kinetic interpretation of temperature the average kinetic energy of translation of molecule of any gas is directly proportional to the temperature and its value for perfect gas is 3/2 kT. In this lecture we have explained about the Mean KE of translation of a gas molecule, Brownian motion, relation between gamma and constitution of gas molecule, degree of freedom, and the law of equipartition of energy in detail. Since the lecture Mean KE of translation of a gas molecule is explained here in both Hindi and English language, so it is better to understand the student of Hindi and English mediums. This is bilingual lecture. This topic is related to Thermodynamics or thermal physics.

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