Explore Alliance Presents: How Do You KNOW? Episode 60 - Proof of Einstein's Theory of Relativity | Science Education & Astronomy Discussion for Students & Teachers

The activities and materials provided free for the How Do You Know? program are based upon Dr. Barth’s award-winning book: . This book is used as a resource in more than 5,700 schools across the United States and in more than 50 countries world-wide. Published as an Open Educational Resource Text, it is made available from the University of Arkansas Library Press.