GoogleTechTalks
Google Tech Talk
April 22, 2013
(more info below)
Presented by Stephon Alexander
ABSTRACT
Over the past decade, based on work pioneered by the speaker, cosmologists have had reason to suspect that Einstein’s gravity has a preferred handedness (chirality). In this talk, after giving an overview of the structure of general relativity, I will explore the cosmological, gravitational wave detection and particle physics consequences of the Chiral Nature of General Relativity. I conclude with an astonishing new direction of unifiying gravity with the weak nuclear interaction, that differs from string theory. At stake potentially is the long elusive goal of physicists to develop a Grand Unified Theory – a coherent model of particle physics, gravitation and cosmology!
Speaker Info
Stephon Alexander is a theoretical physicist specializing in the interface between cosmology, particle physics and quantum gravity (String Theory and Loop Quantum Gravity). He is currently the Ernest Everett Just 1907 Professor of Natural Sciences. He received his BSc (1993) from Haverford College and PhD (2000) from Brown University. He held postdoctoral fellowships at Imperial College, London and The Stanford Linear Accelerator Center. He previously held faculty positions at Penn State and Haverford College.
Research Interests
Theoretical Cosmology: Cosmological Constant Problem, Baryogenesis, Cosmic Inflation, Structure Formation, Singularity Resolution, Quantum Fields in Curved Spaces, String Cosmology. Quantum Gravity: String Theory, Modified Theories of Gravity, Loop Quantum Gravity/Spin Foams. Music: Instrument Acoustic Modelling, Geometry and Math of Music. Recent publications: http://inspirehep.net/search?p=author%3AS.Alexander.2+
Source
the good stuff starts at 40 minutes I would just skip ahead to it that's when he gets started with the baryongenesis and other interesting topics, the first 40 minutes is just a general cosmological review.
He is a captative of his own thoughts.
This made me feel both stupid and amazed at the complexity of the universe.
8:21. I will be honest.. I didn't get that picture of bending space till I was in my 20s. Thank you high-school education.
But keep in mind, there's of course more than only 2 fields/dimensions merging together and the final singularity point is where the final product fields merge together to create our own universe. There is most likely around 11 of the fields/dimensions all added together to create the multi-dimensional fields where points in the 3D space have enough energy to go beyond an actual product of energy and become an actual particle with mass which become themselves fields of observable mass.
I wonder when some physicist who knows the math (as I haven't gone to school for this) will see how the universe is easily explained using my theory: It's not an expansion & creation from a singularity, but a merging of 2 fields(dimensions) which just so happened to start at a single point of the manifold of two fields merging with quantum flux creating the spectrum of heat & energy as they merge into one summarized dimension/universe.
professor alexander is my professor. all of his lectures are really interesting.
Fascinating subject, just not very well presented.
Who cares if you think I'm arrogant.
Who cares about your opinion? If you have trouble understanding something you should probably do something to help yourself understand it. Disrespecting someone who is trying to spread knowledge is just a sign of arrogance
I'll try to be clearer for you. I've watched several lectures on about the same arguments given by other lecturers and I have no trouble understanding them. I have trouble with this particular lecture. I don't think this particular lecturer should be allowed to teach because, in my opinion. he's almost incomprehensible.
I agree, though his presentation manner is a bit of a barrier to following what he's saying as well.
This is very advanced subject matter, from what seems to be an especially knowledgeable speaker. I wish I could follow the presentation, but it was too far beyond my level. It seemed really interesting, though!
I didn't understand a single word this guy said in an hour. Is he insane? I've listened to many science lectures in my life and usually I'm able to grab at least some bits and pieces from them. If I didn't read the title I honestly couldn't event tell what he's talking about.