FUNtastic Physics by TK

This will inspire you a lot. Chaitanya Patel  - Writer My story will be long. But it will be interesting for you to know how I, a Gujarati medium student, cracked JEE without coaching, with only 3 books, with one year preparation. Thanks in advance for those who are going to read it fully. Background : I come from a small town called Kadi in north Gujarat having population not more than 1 lac. I am from a middle class family. Mummy is a teacher and Pappa is a shopkeeper. I have a 5.5 years elder clever brother. He passed out 12th with securing 302nd rank in Gujarat and 4th in the district. For those who don’t know : Gujarat education board has low level syllabus as compared to CBSE. Also when my brother was in 12th, there was GUJCET as the competitive entrance exam. Counselling of engineering colleges in Gujarat were done by the merit list which was prepared by combining 12th exam marks and GUJCET marks. Questions in GUJCET were asked from only 12th syllabus, not 11th. A...

Refrigerator: Food preservation was a serious challenge before the discovery of refrigerators. The best options were to suspend spoilable items in the rivers, wells, or at the bottom of ponds. In spite of that, sometimes stable foods were heavily salted, spiced, pickled, canned or dried to prevent bacterial growth. With the industrial age, we began to understand thermodynamic cycles and through an interplay of pumps, valves, and heat exchange; we learned to cool food to arbitrary temperatures using the refrigerator cycle. So, Let's learn about its three crucial components and understand how they come together to produce the refrigerator’s cooling cycle. Question:  What is the basic idea behind a refrigerator? Answer:  It removes heat from the compartment and pumps it to the outside. Refrigerators continually take away heat from the air in the food compartment and dump it into the environment. The internal compartment of a refrigerator is approxima...