Why Balloons Rise and Apples Fall

We all know the world works in mysterious ways! But have you ever itched to know why? Why don't heavier things fall faster? Why do we have more energy when we're sitting upstairs? Is time travel really possible? And what happened to Schrodinger's poor cat? Why Balloons Rise and Apples Fall is an accessible look at the fascinating, awe-inspiring and sometimes downright weird world of physics. It covers all the basics we learnt at school from:
What is physics?
Motion and forces
Work and energy
Matter and heat
Electricity and magnetism
It even covers the more thought-provoking and complex questions of relativity, quantum physics and astrophysics, as well as all the exciting philosophical questions that arise out of these subjects.