Bob Sled, Backflip and Swegway
What is the science behind bob sledding, why a standing back flip can hurt you and ways you can humiliate yourself on a Swegway.What is the science behind bob sledding, why a standing back flip can hurt you and ways you can humiliate yourself on a Swegway.What is the science behind bob sledding, why a standing back flip can hurt you and ways you can humiliate yourself on a Swegway.