This experience is optimized for Internet Explorer version 9 and above.

Please upgrade your browser

Send the Gift of Lifelong Learning!

The Theory of Everything: The Quest to Explain All Reality

The Theory of Everything: The Quest to Explain All Reality

Professor Don Lincoln, Ph.D.
Fermi National Accelerator Laboratory (Fermilab)

Gifting Information

FAQ
FAQ

To send your gift, please complete the form below. An email will be sent immediately to notify the recipient of your gift and provide them with instructions to redeem it.

  • 500 characters remaining.

Frequently Asked Questions

With an eGift, you can instantly send a Great Course to a friend or loved one via email. It's simple:
1. Find the course you would like to eGift.
2. Under "Choose a Format", click on Video Download or Audio Download.
3. Click 'Send e-Gift'
4. Fill out the details on the next page. You will need to the email address of your friend or family member.
5. Proceed with the checkout process as usual.
Q: Why do I need to specify the email of the recipient?
A: We will send that person an email to notify them of your gift. If they are already a customer, they will be able to add the gift to their My Digital Library and mobile apps. If they are not yet a customer, we will help them set up a new account so they can enjoy their course in their My Digital Library or via our free mobile apps.
Q: How will my friend or family member know they have a gift?
A: They will receive an email from The Great Courses notifying them of your eGift. The email will direct them to TheGreatCourses.com. If they are already a customer, they will be able to add the gift to their My Digital Library and mobile apps. If they are not yet a customer, we will help them set up a new account so they can enjoy their course in their My Digital Library or via our free mobile apps.
Q: What if my friend or family member does not receive the email?
A: If the email notification is missing, first check your Spam folder. Depending on your email provider, it may have mistakenly been flagged as spam. If it is not found, please email customer service at (customerservice@thegreatcourses.com) or call 0800 298 9796 for assistance.
Q: How will I know they have received my eGift?
A: When the recipient clicks on their email and redeems their eGift, you will automatically receive an email notification.
Q: What if I do not receive the notification that the eGift has been redeemed?
A: If the email notification is missing, first check your Spam folder. Depending on your email provider, it may have mistakenly been flagged as spam. If it is not found, please email customer service at (customerservice@thegreatcourses.com) or call customer service at 0800 298 9796 for assistance.
Q: I don't want to send downloads. How do I gift DVDs or CDs?
A: eGifting only covers digital products. To purchase a DVD or CD version of a course and mail it to a friend, please call customer service at 0800 298 9796 for assistance.
Q: Oops! The recipient already owns the course I gifted. What now?
A: Great minds think alike! We can exchange the eGifted course for another course of equal value. Please call customer service at 0800 298 9796 for assistance.
Q: Can I update or change my email address?
A: Yes, you can. Go to My Account to change your email address.
Q: Can I select a date in the future to send my eGift?
A: Sorry, this feature is not available yet. We are working on adding it in the future.
Q: What if the email associated with eGift is not for my regular Great Course account?
A: Please please email customer service at (customerservice@thegreatcourses.com) or call our customer service team at 0800 298 9796 for assistance. They have the ability to update the email address so you can put in your correct account.
Q: When purchasing a gift for someone, why do I have to create an account?
A: This is done for two reasons. One is so you can track the purchase of the order in your ‘order history’ section as well as being able to let our customer service team track your purchase and the person who received it if the need arises.
Q: Can I return or Exchange a gift after I purchase it?
A: Because the gift is sent immediately, it cannot be returned or exchanged by the person giving the gift. The recipient can exchange the gift for another course of equal or lesser value, or pay the difference on a more expensive item

Priority Code

Cancel

The Theory of Everything: The Quest to Explain All Reality

Course No. 1318
Professor Don Lincoln, Ph.D.
Fermi National Accelerator Laboratory (Fermilab)
Share This Course
4.7 out of 5
57 Reviews
82% of reviewers would recommend this series
Course No. 1318
Video Streaming Included Free

What Will You Learn?

  • Discover the unifying theories in classical physics: Newton and Maxwell.
  • Examine the basics of Einstein's special and general relativity.
  • Delve into other pieces of the puzzle, including the Higgs boson and dark energy.
  • Uncover major theories in the quantum revolution.
  • Explore the current standard model of particle physics.
  • Consider the problems between the standard model and general relativity.

Course Overview

The great theories of physics are like great works of art. And much like the greatest works of art, you don’t need to completely understand them in order to appreciate them. The unifying theories of physics are among the greatest and most complex in all of science; they stand as incomparable masterpieces in the gallery of modern thought. As you experience them, you will witness their progression toward ever-grander insights, pointing towards an as-yet-unfinished ultimate synthesis that will transform our understanding of the universe. Anyone, no matter what their training in science and mathematics, can appreciate this quest, which is nothing less than a search for the theory of everything.

The theory of everything will ultimately be single equation that explains all physical reality. The definitive formulation of this holy grail of physics still eludes researchers, but it is a dream with a long history, spawning such revolutionary ideas as:

  • Newton’s law of universal gravitation: In the 17th century, Isaac Newton launched a scientific revolution by showing that the force that makes objects fall is also the force that keeps the Moon and planets in their orbits—what we now call gravity.
  • A unified theory of electromagnetism: In the 19th century, James Clerk Maxwell worked out equations that link two seemingly distinct phenomena—electricity and magnetism—and also predict the existence of electromagnetic waves.
  • Einstein’s general theory of relativity: Starting with the premise that inertial and gravitational mass are equivalent, Albert Einstein made the astonishing discovery that gravity is the bending of space and time caused by mass and energy.
  • The standard model of elementary particles and forces: In the early 20th century, scientists investigated perplexing phenomena, including radiation and the spectrum of light emitted by atoms. Their investigations uncovered new forces and lead to a series of theories that explain the quantum realm.
  • Other cutting-edge concepts: The continuing search for the theory of everything has also produced superstring theory, suspersymmetry, cosmic inflation, loop quantum gravity, dark matter, dark energy, the Higgs field, multiple universes, and more.

The Theory of Everything: The Quest to Explain All Reality opens your eyes to this astounding project in 24 half-hour lectures that are suitable for inquisitive minds at all levels. Your guide, Don Lincoln, Senior Scientist at Fermi National Accelerator Laboratory (Fermilab) and Guest Professor of High Energy Physics at the University of Notre Dame, relishes conveying the thrill of physics to a variety of audiences, so no background beyond basic high-school mathematics is needed to follow this exciting odyssey.

Supported by scores of helpful diagrams, charts, and animations, as well as years of experience as a science writer and educator for the general public via books, blogs and YouTube, Dr. Lincoln makes the most abstract ideas in physics accessible, explaining the interactions behind everything that happens in the cosmos in terms of matter particles, their different characteristics, and the force-carrying particles that are exchanged between them.

A Thrilling First-Hand Report

It only makes sense to start The Theory of Everything by looking at what such a theory entails. After briefly reviewing the standard model of particle physics and general relativity—which are our two best prototypes for a theory of everything, though both fall short—you spend the next few lectures tracing how we got to this point. Along the way, you bridge the classical and modern eras of physics, working your way from moving electric charges, fluctuating magnetic fields, and classical electromagnetism, to the exotic concepts of quantum electrodynamics, the electroweak force, strong force “color” and quantum chromodynamics, neutrinos, and supersymmetric particles.

Then you take a parallel journey through gravity, from Newton’s universal theory of gravitation uniting classical mechanics and celestial motion; to Einstein’s general relativity uniting gravity, time, and space; and then to the even more exotic concepts of dark matter, dark energy, quantum gravity, extra dimensions, and the multiverse.

In each case, new theories spawned new experiments, which led to new observations—often of particles that needed to be accounted for by entirely new theories.

For more than three decades, Dr. Lincoln has been at the forefront of this quest as a physicist designing and evaluating experiments using high-energy particle accelerators. He was on the teams that made two breakthrough discoveries: the top quark in 1995 and the Higgs boson in 2012. His hands-on experience and down-to-earth gift for clear explanations and insightful analogies make this course a thrilling first-hand report from the frontlines of one of the most significant scientific efforts of our time.

A Breathtaking Trip

Among his other talents, Dr. Lincoln is skilled at conveying the beauty of mathematics to novices. While some may believe the theories of physics can’t be appreciated without understanding the mathematics, Dr. Lincoln gives you a solid grounding in what the equations say, conducting you through the Greek letters and strange symbols, explaining what they mean and how these formulas make remarkable statements about the nature of the physical world.

As he says in one lecture, “We’ll walk right up to the precipice of a full-blown calculation, but then we’ll step back before we get mired in the mathematical details.” It’s a breathtaking trip, addressing such topics as:

  • Is the universe mathematical? Physicist Eugene Wigner wrote a famous paper puzzling over what he called the “unreasonable effectiveness of mathematics.” Dr. Lincoln provides an insider’s perspective on how physicists use math to unlock experimental results and why he considers it so amazingly successful at predicting nature.
  • Feynman diagrams: A particle physics tool that anyone can understand is the Feynman diagram, a form of doodle invented by physicist Richard Feynman. Dr. Lincoln demonstrates that these deceptively simple drawings of particle interactions are actually equations in disguise, and he describes how they revolutionized his field.
  • Symmetry everywhere: In 1915, mathematician Emmy Noether proved that conservation laws in physics are connected to the symmetry properties of nature. Dr. Lincoln shows how extensive symmetry is, stressing its importance to unified theories and highlighting a proposed theory of everything called supersymmetry.
  • Limitations of general relativity: Spectacularly successful at the planetary and cosmic scales— and even describing the warped space around black holes—the equations of general relativity break down at the quantum level. Dr. Lincoln gives a simple mathematical reason for why this is the case, illustrating the daunting challenge faced by physicists trying to devise a theory of everything.

In his last lecture, Dr. Lincoln synthesizes our current understanding by presenting a single equation that covers everything that is known to be true in fundamental physics, including special relativity, quantum mechanics, the standard model, and general relativity. By the end of the course, you’ll have touched on nearly all the major theories of physics, and will have a thorough understanding of our most current knowledge about reality.

“There are so many clues staring at us in the face,” Dr. Lincoln says of the many possible paths forward. “They are telling us something profound. Somebody will one day have the crucial idea.” To experience this course, is to understand first-hand the thrilling unifications of reality physicists have already achieved, the promise of a Theory of Everything, and clues about what wonders lie just beyond the horizon.

Hide Full Description
24 lectures
 |  31 minutes each
  • 1
    Two Prototype Theories of Everything
    Embark with Dr. Lincoln on a search for a theory of everything-a simple and comprehensive explanation for all physical phenomena in the universe. Confront the incompatibility of our two best prototypes: the standard model of particle physics and the general theory of relativity. x
  • 2
    The Union of Electricity and Magnetism
    Learn how two seemingly separate phenomena, electricity and magnetism, were shown by James Clerk Maxwell in the 1860s to be aspects of a single underlying force, demonstrating how unification works in physics. Then see how Maxwell's equations of electromagnetism make a remarkable prediction. x
  • 3
    Particles and Waves: The Quantum World
    Follow one of the strangest turns in modern science: the discovery of the paradoxical world of light, which spawned the theory of quantum mechanics. Discover how light and matter behave as both particles and waves, and look at evidence for this curious feature of the quantum world. x
  • 4
    Einstein Unifies Space, Time, and Light
    Trace the reasoning that led Einstein to his special theory of relativity, proposed in 1905. Address common misconceptions about this startling new view of time and space, which led to ideas such as mass-energy equivalence, the impossibility of faster-than-light travel, and the space-time continuum. x
  • 5
    Relativistic Quantum Fields and Feynman
    Take a deeper step into the quantum world, observing how the theory of quantum electrodynamics, or QED, unites quantum mechanics with special relativity. Discover that the handy sketches of subatomic behavior called Feynman diagrams (named after physicist Richard Feynman) are really equations in disguise. x
  • 6
    Neutrinos Violating Parity and the Weak Force
    Study the weak nuclear force, which is responsible for beta decay: the emission of an electron from a nucleus during radioactive decay. Discover that much more is going on, including weird transformations that pose a challenge to a theory of everything. x
  • 7
    Flavor Changes via the Weak Force
    Analyze more idiosyncrasies of the weak force, focusing on the three massive particles that mediate its interactions. Discover that the weak force is unique in its ability to change a characteristic called flavor, and learn that at high energies the weak force is exceptionally strong. x
  • 8
    Electroweak Unification via the Higgs Field
    A key step in the quest for a theory of everything has been the realization that the electromagnetic and weak forces are aspects of the same force. Follow the saga of electroweak unification, which culminated in the discovery of the Higgs boson in 2012. x
  • 9
    Quarks, Color, and the Strong Force
    Explore the force that helps hold the atomic nucleus together, called the strong force. Chart the discovery of this mysterious mechanism-which only works at extremely short range-and see how it led to concepts such as quarks, gluons, and the color force, which is responsible for the strong interaction. x
  • 10
    Standard Model Triumphs and Challenges
    Bring together all the concepts studied so far to gauge how close physicists are to a theory of everything. Focus on the shortcomings of the standard model. Then zero in on two burning questions: Why is the mass of the Higgs boson so low, and why does matter predominate over antimatter? x
  • 11
    How Neutrino Identity Oscillates
    Transition to a new perspective as Professor Lincoln spotlights speculative ideas that may contribute to a theory of everything. In this lecture, explore the mysteries of neutrinos, which are extraordinarily hard to detect yet hold intriguing clues about the possible unity of fundamental forces. x
  • 12
    Conservation Laws and Symmetry: Emmy Noether
    Consider why mathematics is such an effective tool for describing nature. Then focus on mathematician Emmy Noether's remarkable insight that links symmetries in the equations of a physical system to conservation laws, such as the conservation of energy and conservation of momentum. x
  • 13
    Theoretical Symmetries and Mathematics
    The first inklings of a successful theory of everything will probably arise from symmetries and group theory. Prepare for this epochal moment by digging into these important mathematical ideas. Also, learn to approach proposed theories of everything with fascination, tinged with healthy skepticism. x
  • 14
    Balancing Force and Matter: Supersymmetry
    One of the most attractive ideas for physicists searching for a theory of everything is supersymmetry, which treats force- and matter-carrying particles as interchangeable. Explore major problems that supersymmetry solves and the shortcomings that convince some scientists that perhaps some other ideas must also be considered. x
  • 15
    Why Quarks and Leptons?
    The fundamental building blocks of matter are thought to be quarks (which interact by the strong force) and leptons (which interact by the electromagnetic and weak forces). But could there be a deeper level? Explore the theory of preons, which may be even more fundamental than quarks and leptons. x
  • 16
    Newton's Gravity Unifies Earth and Sky
    Gravity is by far the weakest of the fundamental forces. Learn how Newton achieved the first major unification in physics by showing that terrestrial and celestial gravity are the same. He also tacitly equated inertial mass and gravitational mass, leading to the startling theory 250 years later. x
  • 17
    Einstein's Gravity Bends Space-Time
    Built on the equivalence of inertial and gravitational mass, Einstein's general theory of relativity explains gravity in a surprising new way. See how matter and energy determine the shape of space and time. Investigate confirming evidence for general relativity, including the discovery of gravitational waves in 2015. x
  • 18
    What Holds Each Galaxy Together: Dark Matter
    Trace the discovery of missing mass surrounding most galaxies, which leads scientists to infer that 85% of all matter is "dark" and can't be observed directly. Evaluate the major theories about this discrepancy, and consider its implications for a theory of everything. x
  • 19
    What Pushes the Universe Apart: Dark Energy
    Turn to dark energy, the ghostly energy field that appears to be pushing the universe apart at an ever-greater rate. Learn how this extraordinary discovery was made in 1998, and explore theories that attempt to explain dark energy and its strange consequences. x
  • 20
    Quantum Gravity: Einstein, Strings, and Loops
    A theory of everything must fit gravity into the quantum realm, reconciling the general theory of relativity with the standard model of particle physics. Explore the features of gravity that make this unification so difficult, and evaluate two intriguing approaches: superstring theory and loop quantum gravity. x
  • 21
    From Weak Gravity to Extra Dimensions
    Venture into extra dimensions to investigate gravity's extraordinary weakness compared to the other fundamental forces. This journey also sheds light on the possible creation of subatomic black holes in particle accelerators and why tiny black holes pose no risk to humanity. x
  • 22
    Big Bang and Inflation Explain Our Universe
    Starting with the big bang, plot the history of our universe, focusing on events in the tiniest fraction of the first second, when phenomena such as supersymmetry, superstrings, and quantum loops may have come into play. Consider the explanatory power of the theory of cosmic inflation. x
  • 23
    Free Parameters and Other Universes
    Now step into the realm of other universes. Do they exist? If so, how could we possibly know? Start by examining the free parameters that govern the structure and behavior of our universe. Then seek answers to four crucial questions that address why the parameters take the values that they do. x
  • 24
    Toward a Final Theory of Everything
    Finish the course by reviewing unified theories since Newton, analyzing a remarkable equation that brings major insights together and represents the current status of a theory of everything. Then look ahead to the next steps, and hear Dr. Lincoln's own research agenda for this momentous quest. x

Lecture Titles

Clone Content from Your Professor tab

What's Included

What Does Each Format Include?

Video DVD
Video Download Includes:
  • Downloadable PDF of the course guidebook
  • Ability to download 24 video lectures from your digital library
Video DVD
DVD Includes:
  • 24 lectures on 4 DVDs
  • 248-page printed course guidebook
  • Downloadable PDF of the course guidebook
  • FREE video streaming of the course from our website and mobile apps
  • Closed captioning available

What Does The Course Guidebook Include?

Video DVD
Course Guidebook Details:
  • 248-page printed course guidebook
  • Photos, illustrations, and tables
  • Suggested reading
  • Questions to consider

Enjoy This Course On-the-Go with Our Mobile Apps!*

  • App store App store iPhone + iPad
  • Google Play Google Play Android Devices
  • Kindle Fire Kindle Fire Kindle Fire Tablet + Firephone
*Courses can be streamed from anywhere you have an internet connection. Standard carrier data rates may apply in areas that do not have wifi connections pursuant to your carrier contract.

Your professor

Don Lincoln

About Your Professor

Don Lincoln, Ph.D.
Fermi National Accelerator Laboratory (Fermilab)
Don Lincoln is a Senior Scientist at Fermi National Accelerator Laboratory (Fermilab). He is also a Guest Professor of High Energy Physics at the University of Notre Dame. He received his Ph.D. in Experimental Particle Physics from Rice University. Dr. Lincoln’s research has been divided between Fermilab’s Tevatron Collider, until its close in 2011, and the CERN Large Hadron Collider, located outside Geneva,...
Learn More About This Professor
Also By This Professor

Reviews

The Theory of Everything: The Quest to Explain All Reality is rated 4.6 out of 5 by 57.
Rated 5 out of 5 by from I just finished watching the DVDs and it is excellent in every way. Lately I have been reading a lot of material targeted to the general public on Quantum Mechanics so I had some knowledge of the basics. The course went into more detail and it deepened my understanding of the subject which is exactly what I was looking for. Some of the material can be challenging to all take in the first time through but you can always rewind and watch it again. I have seen Dr. Lincoln's short videos on YouTube and when I saw he was the lecturer for this course I didn't hesitate to buy it and I was not disappointed. If you liked this course I suggest you check out Dr. Lincoln's YouTube videos. Of the five Great Courses I have bought this is my favorite.
Date published: 2017-09-19
Rated 5 out of 5 by from Great way to get up to date on a rapidly changing As a former physics major (BS 1974) who did not work as a physicist, I have tried to stay up to date on developments in the field. Almost no area of physics has had as many developments since my student days as particle physics. Dr. Lincoln is a master teacher able to communicate complex concepts in a clear understandable manner.
Date published: 2017-09-18
Rated 4 out of 5 by from Heavy Lifting This is a great course taught beautifully by the professor. This is not for sissies. It is heavy lifting but if you want to understand sub particle physics, this course and professor are great.
Date published: 2017-09-14
Rated 5 out of 5 by from Worth the Time With a little background in physics and mathematics, this course is worth the time. If you want to understand the current state of particle physics. The presentation is exceptional with credit going to Dr. Lincoln for his ability to make a complex subject somewhat understandable for a layman.
Date published: 2017-09-05
Rated 2 out of 5 by from theory of everything the course is too technical for people who are not familiar with physics
Date published: 2017-09-02
Rated 3 out of 5 by from Complicated These an extremely difficult course to stay with. Too much math for me and just boring. I have a somewhat toned down version of a similar course by a lady scientist and that was great. Don't bother with this one unless you thrive on match.
Date published: 2017-09-02
Rated 5 out of 5 by from Completely fascinating; Wonderfully taught This is an extraordinary course from multiple perspectives. - - - 1) Most importantly, it covers in both breadth and (some) depth the truly amazing insights which human beings have gained regarding the physical nature of our universe. It also describes current areas of uncertainty and research, and speculates about where we will go from here. 2) It is wonderfully taught. Professor Lincoln is of course extremely knowledgeable in this area; he is also very well-organized and presents complex ideas with clarity and focus. His speaking style is casual and well-modulated, never distracting. 3) Professor Lincoln makes clear which ideas are well-founded and describes their evidence, which theories have partial support, and which are purely imaginative, at least for the time being. 4) The visuals are extremely well done and very helpful for understanding the material. The course employs a great deal of mathematics to help explain the concepts and make them as precise as possible. (Thank you for this, TGC!) However - do *not* let this stop you from taking the course if you are math-phobic. You can take what you are able from the math, and let the rest go by. You will still gain an understanding of this fascinating area at a qualitative level. Our professor's frequent and excellent use of metaphors is very helpful here. My only slight criticism is that Professor Lincoln often speaks as if a "theory of everything" is literally about everything, rather than about fundamental physics. It would have been a bit more humble to explicitly recognize that the emergent properties in fields such as biology and anthropology cannot meaningfully be reduced to physics, not to mention areas such as morality, ethics, and religion. Regardless, this is a truly great course, with my highest recommendation for any with an interest in this area. Enjoy.
Date published: 2017-08-27
Rated 4 out of 5 by from Deeply involved I feel that this course is not for the first time experience of quantum physics. It is deep and complicated as the subject surely is. There is a lot and I mean a lot of information here.A little tough to get through. The instructor is very good at explaining using lots of simple diagrams. I especially like the bits of history of how and why we know whats happening at the atomic level. This is an extremely good course, but may I say it is not for the faint of heart in the quantum physics subject. I would say that this course is the deepest and most involved on this subject of all the other quantum physics courses that I have watched from The Great Courses. I would recommend this course on DVD only as you will surely want and need to go back and review material.
Date published: 2017-08-06
  • y_2017, m_9, d_22, h_3
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.3
  • cp_1, bvpage1
  • co_hasreviews, tv_4, tr_53
  • loc_en_US, sid_1318, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_teachco
  • bvseo_sdk, p_sdk, 3.2.0
  • CLOUD, getContent, 7.79ms
  • REVIEWS, PRODUCT

Questions & Answers

Questions

1-10 of 11 Questions
1-10 of Questions

Customers Who Bought This Course Also Bought

Video title