Understanding Thermodynamics: : Energy, Entropy and the Rules That Govern Everything

By Raymond Davey

Why does coffee go cold, why does time only move forward, and how can a steam engine from 1712 still tell us how the universe ends?

Understanding Thermodynamics is a clear, story-driven guide to energy, entropy and the laws of physics that quietly govern engines, chemistry, living cells, stars and black holes. No equations to wade through. No physics degree required.

It begins in an English coal mine, where engineers were building powerful machines before anyone understood heat.

From there you'll meet the people who worked it out: a cannon-boring adventurer who boiled water with friction, a brewer who measured temperature to a hundredth of a degree, and a young French engineer whose mistaken theory still produced a result that holds today. You'll also meet a physicist whose equation was carved on his headstone only after his death.

Inside, you'll discover: What energy actually is, and why four people in four countries found the same law at onceWhy heat only flows one way, and what that has to do with the arrow of timeWhy entropy is not "disorder" but the arithmetic of ways something can be arrangedHow Maxwell's demon forced physicists to treat information as a physical thingWhy absolute zero can be approached but never reachedWhy every engine, power plant and refrigerator hits a ceiling it cannot crossHow life builds order without breaking the Second LawWhat the heat death of the universe means, and how cosmology has changed the pictureWhy black holes have temperature, and what that reveals about gravity, information and space itselfWho is this book for?
Readers of popular science who enjoy books on physics, cosmology, time and the history of ideas. Curious adults, students, engineers, teachers and lifelong learners who want to finally understand entropy and the Second Law of Thermodynamics. It is also a good gift for anyone who has ever asked, "But why does it work that way?"

Twelve chapters, plain language, and one big idea: thermodynamics is the bookkeeping of the universe.

Once you see it, you'll notice it everywhere.

• Format: Paperback
• Language: English
• ISBN: B0HMNDQTPQ
• ISBN13: 9798161505199
• Release Date: October 2026
• Publisher: Independently Published
• Length: 106 Pages
• Weight: 0.34 lbs.
• Dimensions: 0.2" x 6.0" x 9.0"