Albert Einstein and Relativity for Kids: His Life and Ideas with 21 Activities and Thought Experiments

Albert Einstein and Relativity for Kids: His Life and Ideas with 21 Activities and Thought Experiments — page 9
Note to Readers Thought Experiments Imagination is more important than knowledge Knowledge is limited Imagination encircles the world Einstein IMAGINE THAT you were to walk into a brick wall Would it hurt Of course Would you need to walk into a brick wall to convince yourself of this No you could figure it out without actually having to do it You know that brick walls are hard You know that if something hits you in the nose it hurts So if your nose were to hit a very hard brick wall it would hurt Congratulations you've just performed a thought experiment Albert Einstein was famous for using thought experiments to develop his theories and to explain his ideas to other people He would imagine trains traveling at nearly the speed of light this was long before rockets and elevators falling down bot tomless shafts or traveling through space What would people on those trains and in those elevators experience In this book you will be asked to perform several thought experiments to better understand Einstein's theories They will be marked with a