String Theory is a theory in particle physics that attempts to describe the reality of our Universe and bring together Quantum Mechanics and General Relativity. As we attempt to better comprehend the nature of space/time, some leading physicists beli...eve that String Theory gives us our best shot at grasping the true physical makeup of our Universe. Many think that the leading current scientist working on String Theory is Edward Witten, and it seems only time will tell the truth value of this amazing and complex theory. (08:41)[more]

In theoretical physics, M-theory is an extension of string theory in which 11 dimensions are identified. Because the dimensionality exceeds the dimensionality of superstring theories in 10 dimensions, it is believed that the 11-dimensional theory uni...tes all five string theories (and supersedes them). This professionally-made video series from NOVA attempts to explain string theory and M-theory in the simplest terms possible. (08:53)[more]

String Theory is a theory in particle physics that attempts to describe the reality of our Universe and bring together Quantum Mechanics and General Relativity. As we attempt to better comprehend the nature of space/time, some leading physicists beli...eve that String Theory gives us our best shot at grasping the true physical makeup of our Universe. Many think that the leading current scientist working on String Theory is Edward Witten, and it seems only time will tell the truth value of this amazing and complex theory. Part 9 addresses the weakness of gravity and gravity as radiating gravitons in terms of closed ended loops and more. (06:55)[more]

In theoretical physics, M-theory is an extension of string theory in which 11 dimensions are identified. Because the dimensionality exceeds the dimensionality of superstring theories in 10 dimensions, it is believed that the 11-dimensional theory uni...tes all five string theories (and supersedes them). This professionally-made video series from NOVA attempts to explain string theory and M-theory in the simplest terms possible. This is the final part of the video series. (08:59)[more]

String Theory is a theory in particle physics that attempts to describe the reality of our Universe and bring together Quantum Mechanics and General Relativity. As we attempt to better comprehend the nature of space/time, some leading physicists beli...eve that String Theory gives us our best shot at grasping the true physical makeup of our Universe. Many think that the leading current scientist working on String Theory is Edward Witten, and it seems only time will tell the truth value of this amazing and complex theory. (07:04)[more]

String Theory is a theory in particle physics that attempts to describe the reality of our Universe and bring together Quantum Mechanics and General Relativity. As we attempt to better comprehend the nature of space/time, some leading physicists beli...eve that String Theory gives us our best shot at grasping the true physical makeup of our Universe. Many think that the leading current scientist working on String Theory is Edward Witten, and it seems only time will tell the truth value of this amazing and complex theory. (03:13)[more]

String Theory is a theory in particle physics that attempts to describe the reality of our Universe and bring together Quantum Mechanics and General Relativity. As we attempt to better comprehend the nature of space/time, some leading physicists beli...eve that String Theory gives us our best shot at grasping the true physical makeup of our Universe. Many think that the leading current scientist working on String Theory is Edward Witten, and it seems only time will tell the truth value of this amazing and complex theory. (05:17)[more]

String Theory is a theory in particle physics that attempts to describe the reality of our Universe and bring together Quantum Mechanics and General Relativity. As we attempt to better comprehend the nature of space/time, some leading physicists beli...eve that String Theory gives us our best shot at grasping the true physical makeup of our Universe. Many think that the leading current scientist working on String Theory is Edward Witten, and it seems only time will tell the truth value of this amazing and complex theory. (03:17)[more]

String Theory is a theory in particle physics that attempts to describe the reality of our Universe and bring together Quantum Mechanics and General Relativity. As we attempt to better comprehend the nature of space/time, some leading physicists beli...eve that String Theory gives us our best shot at grasping the true physical makeup of our Universe. Many think that the leading current scientist working on String Theory is Edward Witten, and it seems only time will tell the truth value of this amazing and complex theory. (04:04)[more]

String Theory is a theory in particle physics that attempts to describe the reality of our Universe and bring together Quantum Mechanics and General Relativity. As we attempt to better comprehend the nature of space/time, some leading physicists beli...eve that String Theory gives us our best shot at grasping the true physical makeup of our Universe. Many think that the leading current scientist working on String Theory is Edward Witten, and it seems only time will tell the truth value of this amazing and complex theory. (04:39)[more]

Please make your comments on categories positive, and not just negative.

People work hard on educational categories, and we want to encourage them to make more!

Profanity (curse words), sexually suggestive remarks, and other such obviously inappropriate comments
will be deleted immediately, and are grounds for immediate expulsion. Remember, children use this website.

Personal criticism on project forums and in video content is not allowed and will be deleted immediately.
Any violations of this rule could result in expulsion from the project so please, no insults or other negative
personal remarks.

Very harshly-worded criticism of content will also be deleted promptly. Please use your vote to express your
harshest feelings. Repeated violations of this rule can result in expulsion. If you must criticize another
person's hard work, then be nice about it.

People work hard on educational categories, and we want to encourage them to make more!