What's a frame of reference and the two types? How can you tell? Watch and find out. This leads to a conundrum Einstein had about how light behaves in different frames of reference and led to a radical new way of thinking. That will be covered in subsequent videos See www.physicshigh.com for all my videos and other resources. If you like this video, please press the LIKE and SHARE with your peers. And please add a COMMENT to let me know I have helped you. Follow me facebook: @physicshigh twitter: @physicshigh Support me at Patreon: www.patreon.com/highschoolphysicsexplained #physicshigh @highschoolphysicsexaplained