What actually happens to energy when you use it? Where does the energy in an energy drink come from, and how would you verify whether the label is telling the truth? Dr. P.K. Joshi wrote this book for students aged 14 to 16 — exactly the age when these questions feel real but the answers given in textbooks feel unsatisfying.
The book works through energy's many faces: its scientific definitions, its economic dimensions, questions of natural resource consumption, and whether supply is genuinely finite. Joshi presents calculations, then invites students to extend them to the physics of everyday life — the kind of reasoning that builds independent thinkers rather than passive learners. For those preparing for Science Olympiads, the unconventional framing of familiar topics offers the lateral thinking that standard preparation rarely develops.
-:ABOUT THE BOOK:- This book deals with concepts of energy from different perspectives of science, economics, consumption, etc. Is there a single source of energy? Are we really wasting natural sources of energy? What happens to all the energy at the end? Do we have a limitless supply of energy available? Meant for students of class 8-10 (age group 14-16), the book tries to ponder upon such questions and think independently and "out of the box". When the 'energy drink' advertisement claims to provide certain kcal, how do we know this is correct? The author has presented some calculations to start with and wants the students to expand those to their day-to-day understanding of science. Those who are aspiring to enroll for the Science Olympiad can immensely benefit from such unusual discussions.
