The Biggest Ideas in the Universe

If you're into physics but don't want to be a full-time physicist or study it in college, this book is just right for you. It's like a mix of a fun science book and a serious study guide. The writer makes hard theories easy to understand and shows you the math that explains them. Most simple science books only cover the basics, but sometimes you might want to see the actual math and learn how to read it—without having to solve it yourself.

This book is just what I was looking for. It takes you from understanding how things move to the deep ideas of general relativity. The math helps make everything clearer. But I have to say, towards the end, things get a bit complicated. When it starts talking about Tensors in general relativity, it's pretty tough. The writer is not always consistent with how hard things are. Sometimes they explain really simple math, but other times they expect you to know a little more, like basic calculus.

If math makes you nervous, this book might not be your cup of tea. But overall, I had a great time reading it!