Thank you for sharing this, Bonnie. Kaku reminds me of Carl Sagan, for whom I have a tremendous amount of respect and admiration. After searching his name on YouTube, I am delighted to discover that segments of his "Cosmos" television series, originally broad cast in the 1980s, I believe, is available for viewing. I have the original series on video tape, which I purchased back in 1991. It was one of the best investments I ever made. Granted, some of the information is now out dated, but much of it remains relevant, and Sagan has an incredible way of explaining, illustrating and teaching science and chemistry in such a way that those of us who were never inclined in that direction can actually truly understand and appreciate the concepts being explained.
Sagan explained in his "Cosmos" series what Kaku mentions in the video above: All of the science that we know builds upon itself, and what we have today, and all that we have learned, is the result of many people working over many years, building upon the knowledge of their predecessors. It is a collective journey and knowledge base.
Here's to Carl Sagan, Michio Kaku, and time travel!
Hope you don't mind me adding Carl Sagan to this thread, Bonnie. I love this man as a scientist and as a teacher! He explains things in such a way, without talking down to his audience - aka students, which we are when we watch this series and listen to him speak - that the layman can understand the material and the concepts without having to have a degree in physics. I actually took detailed notes on every single episode in this series back in 1993. That's how much I loved this series and all the information it contained.
Carl Sagan made science and chemistry, not to mention physics, fun for me.
Kaku and Carl Sagan have opened my mind and heart to new possibilities and taught me oodles about the reality of Physics. It is amazing how much the human mind has evolved and how much we are discovering concerning our surroundings and the mechanisms and logic that make the universe our reality.
A person once told me that in order to experience Physics on a practical level I should put a ball in a red wagon and pull the wagon forward fast. I did this and the ball stayed in the same place and the wagon moved forward. I have been fascinated by Physics ever since. Never have I forgotten that experience.
