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Nuclear Physics Explained

Join an award-winning professor of physics to explore the powerful forces of nuclear energy, nuclear weapons, and nuclear medicine.
Nuclear Physics Explained is rated 4.3 out of 5 by 80.
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Rated 5 out of 5 by from Outstanding basic course on nuclear physics. I bought this course a few months ago with the full knowledge that nuclear physics might very possibly be beyond my fading intellectual abilities (I'm almost 65 years old). Imagine my surprise when I was able to understand the vast majority of the material, though not without going over and over tough spots until I had mastered some fairly difficult concepts. Professor Weinstein has an infectious enthusiasm for his subject, clearly knows it inside and out, and is a wonderful teacher as well (if he got me through it he can get you through it). Fantastic course!
Date published: 2024-05-22
Rated 5 out of 5 by from Fascinating course This is a mind-blowing course. I particularly liked the explanation of levels of a nucleus and understanding why some of them a stable and some are not. It was easily understandable to somebody with a background in chemistry. The radiotherapy discussed in later lectures is very, very interesting. The lecturer is very good; you could tell that he is not an academic because he speaks too fast sometimes. Overall - fantastic!
Date published: 2024-03-21
Rated 3 out of 5 by from Not for non-scientists "Nuclear Physics Explained is your guide to a subject that is rarely presented at a level suitable for non-scientists." This lecture series is no exception. It is not designed or delivered for non-scientists. If you're a college student (better still a graduate student) majoring in physics, I'm sure you'll find it intellectually stimulating, but in my opinion no one can seriously suggest otherwise. Moreover, it strikes me that the professor didn't make a sufficient attempt to tone the lecture down to embrace the non-scientist.
Date published: 2024-02-11
Rated 5 out of 5 by from Have a subscription to Great Courses through Amazon prime and watched this course through that subscription. The course itself is very well designed and manages to give the viewer a large amount of information in a manner that is easy to comprehend. This in and of itself is no easy task for any subject let alone a subject like nuclear physics. Dr. Weinstein is an excellent lecturer of a quality that I have only encountered in 2 other professors in my long academic career (which includes med school). I would highly recommend that anyone with even a passing interest in physics watch this lecture series.
Date published: 2023-07-08
Rated 5 out of 5 by from Inspiring Coverage I loved watching and listening to Professor Weinstein break down the extremely complicated subject matter of Nuclear Physics. I founf the lectures easy to follow with his clear and informative treatment of this topic. I would recommend this course to anyone who wants to broaden their knowledge of Nuclear Physics. I look forward to seeing more courses on this subject matter
Date published: 2023-04-06
Rated 4 out of 5 by from Very good explanations He is clearing up a lot for me. Lots of detail. Thanks
Date published: 2022-12-29
Rated 2 out of 5 by from Dissapointed This course is really wrongly titled. It should have been titled "Application of Nuclear R Radiation/ and Decay". Far to little of the course was spent on "Nuclear Physics Explained". Basic principles were often quoted, but not explained.
Date published: 2022-07-19
Rated 5 out of 5 by from This is a great overview of nuclear physics. Who knew that nuclear physics could be used to determine if a vanilla extract product was real or artificial? The section on nuclear power generation was quite interesting and informative as we head into a lower carbon future. I do wish there was an explanation of dark matter.
Date published: 2022-06-20
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Taught by Professor Lawrence Weinstein of Old Dominion University, this course explains the science, history, hazards, applications, and latest advances in nuclear physics. You learn the principles of radioactivity, how nuclear bombs and reactors work, the uses of radiation for cancer treatment and medical imaging, what makes some forms of radiation dangerous, plus you tour a linear accelerator.


Lawrence Weinstein

The philosopher's stone of the alchemists turns out to be the nucleus, involving forces much greater than anything in chemistry.

Lawrence Weinstein is a Professor of Physics at Old Dominion University (ODU) and a researcher at the Thomas Jefferson National Accelerator Facility. He received his undergraduate degree from Yale University and his doctorate in Physics from the Massachusetts Institute of Technology. Professor Weinstein’s research involves electron scattering to study the structure of the nucleus and proton.

Among his many awards, Professor Weinstein received the ODU Teaching with Technology Award, was named University Professor for his outstanding teaching, and received the A. Rufus Tonelson Faculty Award from ODU, the George B. Pegram Award for Excellence in Physics Education in the Southeast from the American Physical Society, and the Virginia Outstanding Faculty Award. In recognition of his research, Professor Weinstein was named an Eminent Scholar, a distinction reserved for only four percent of the ODU faculty, and he was named a fellow of the American Physical Society.

Professor Weinstein is the author of Guesstimation (with John Adam) and Guesstimation 2.0, about techniques for finding approximate solutions to any problem. He has coauthored more than 200 publications in professional journals, with more than 10,000 citations. He has given more than 110 professional presentations, in addition to more than 75 talks and physics demonstrations for community groups, high schools, and middle schools.

By This Professor

Nuclear Physics Explained
Nuclear Physics Explained


A Tour of the Nucleus and Nuclear Forces

01: A Tour of the Nucleus and Nuclear Forces

Take a whirlwind tour of nuclear physics, getting a glimpse of the rich array of topics and concepts you will cover in this course. Professor Weinstein explains the constituents of the nucleus; what holds the nucleus together, its role in determining atomic identity; and the nature of isotopes. He introduces two key tools: the periodic table of elements and the table of nuclides.

33 min
Curve of Binding Energy: Fission and Fusion

02: Curve of Binding Energy: Fission and Fusion

See how the strong and electromagnetic forces shape the nuclei of all atoms. Focus on the curve of binding energy, which explains why heavy nuclei are prone to fission, releasing energy in the process, while light nuclei release energy by fusing. Then, visit some classroom lab equipment to explore the principles that govern particle accelerators, which are used to probe the structure of nuclear matter.

32 min
Alpha, Beta, and Gamma Decay

03: Alpha, Beta, and Gamma Decay

Now turn to unstable nuclei and the process of radioactive decay. Trace three types of decay—alpha, beta, and gamma—studying the particles involved, their charge (or lack thereof) and energy ranges. Measure radioactivity with a Geiger counter, and consider what it would take to shield against each type of radiation.

33 min
Radiation Sources, Natural and Unnatural

04: Radiation Sources, Natural and Unnatural

Survey the sources of radiation in the world around us, bombarding us from the sky (cosmic rays), found in the ground (uranium and other naturally occurring radioactive elements), zapping us in medical procedures, and found in consumer goods. Look at some long-discontinued radiating products such as shoe fluoroscopy and Radithor, an ill-advised radium-laced health tonic.

29 min
How Dangerous Is Radiation?

05: How Dangerous Is Radiation?

Radiation terrifies many of us, but how scared should we be? Probe the difference between ionizing and non-ionizing radiation, focusing on what high-energy emissions do to DNA. Consider a host of radiation sources—from the innocuous, such as cell phones and power lines, to nuclear explosions and dirty bombs. Finally, learn what to do if you are ever exposed to nuclear fallout.

29 min
The Liquid-Drop Model of the Nucleus

06: The Liquid-Drop Model of the Nucleus

Now open the hood to see how the nucleus works. Start simple with a hydrogen atom, which has a nucleus of one proton orbited by a single electron. Build from there, adding neutrons and more protons, forging elements and their isotopes and seeing how the nucleus behaves much like a liquid drop. Then use the Fermi gas model to refine your understanding of nuclear structure.

29 min
The Quantum Nucleus and Magic Numbers

07: The Quantum Nucleus and Magic Numbers

High school chemistry introduces students to the atomic shell model, which describes the distribution of electrons around the nucleus. In this lecture, learn the analogous nuclear shell model and the magic numbers that constitute full shells of protons and neutrons within the nucleus. Also, discover how an entire nucleus can ring like a bell or spin like a top.

29 min
Particle Accelerators: Schools of Scattering

08: Particle Accelerators: Schools of Scattering

Take a behind-the-scenes tour of the Thomas Jefferson National Accelerator Facility in Newport News, Virginia, where Professor Weinstein and his colleagues use high-energy electron beams to probe the structure of the nucleus. Dr. Weinstein also explains other types of particle accelerators and their purposes, including the Large Hadron Collider in Europe.

35 min
Detecting Subatomic Particles

09: Detecting Subatomic Particles

Subatomic particles are inconceivably small and move unbelievably fast. So how are they detected? To learn the ropes, go into an instrument facility where detectors are built. Begin with the simple circuitry of a Geiger counter, invented in the 1920s, and graduate to state-of-the-art tools that are millions of times more sensitive, including scintillators and wire chambers.

31 min
How to Experiment with Nuclear Collisions

10: How to Experiment with Nuclear Collisions

Continue your tour of Jefferson Lab by learning how scientists design an experiment, get it approved, run it, and then analyze the results. Discover why interpreting the outcome of nuclear collisions is like reconstructing car crashes. One tool relies on the shock wave produced by particles moving faster than light, which is possible in mediums other than a vacuum.

31 min
Scattering Nucleons in Singles or in Pairs

11: Scattering Nucleons in Singles or in Pairs

Focus on specific experiments at Jefferson Lab’s largest research hall, where mammoth machines smash electrons into nuclei and measure the scattered electrons and other particles. The goal is to understand the quantum orbits in nuclear shells. Professor Weinstein shows how nuclear physicists think in designing experiments to peel away the layers of the nuclear onion.

32 min
Sea Quarks, Gluons, and the Origin of Mass

12: Sea Quarks, Gluons, and the Origin of Mass

Discover the fundamental particles that make protons and neutrons tick—namely, quarks and gluons. Learn why quarks are never seen in isolation and why the mass of ordinary valence quarks (three per proton or neutron) accounts for only a tiny fraction of their mass. The answer to both riddles lies in “sea quarks,” the swarm of quark-antiquark pairs within protons and neutrons, which can be infinite in number.

29 min
Nuclear Fusion in Our Sun

13: Nuclear Fusion in Our Sun

Study the fusion reactions that take place inside the Sun. First, consider the formidable barrier that hydrogen nuclei must overcome to fuse into helium. Then, see how the mass and temperature of a star govern the types of reactions it can support. One product of stellar reactions is neutrinos, ghostly particles that pass through the Earth (and us) in colossal numbers.

31 min
Making Elements: Big Bang to Neutron Stars

14: Making Elements: Big Bang to Neutron Stars

See how hydrogen, helium, and a few other light nuclei were forged in the fiery aftermath of the Big Bang. Then, trace the formation of heavier nuclei in the interiors of stars, in supernova explosions, and in the collisions of neutron stars. Special attention is paid to the sequence of reactions and the required conditions that gave us the complete periodic table of elements.

31 min
Splitting the Nucleus

15: Splitting the Nucleus

The discovery of the neutron in 1932 led to the insight that neutrons can incite certain heavy elements to fission (break apart), releasing more neutrons and a prodigious amount of energy. In this lecture, lay the groundwork for understanding nuclear weapons and nuclear power by investigating nuclei that are prone to fission, how to initiate fission, and the “daughter nuclei” that result.

28 min
 Nuclear Weapons Were Never “Atomic” Bombs

16: Nuclear Weapons Were Never “Atomic” Bombs

Often called “atomic” bombs, the fission weapons first exploded in 1945 are in fact nuclear bombs—as are the fusion-boosted “H-bombs” developed a few years later. Study how these devices work, the difficulty of producing their reactive material, and techniques for enhancing their yield and miniaturizing warheads. Also, understand why the search for peaceful applications of nuclear weapons proved fruitless.

27 min
Harnessing Nuclear Chain Reactions

17: Harnessing Nuclear Chain Reactions

Learn the fundamentals of nuclear reactor design, which has the task of sustaining nuclear reactions at a controlled rate in order to boil water, produce steam, and drive a generator. Explore why a nuclear reactor can’t explode like a bomb, and consider pluses and minuses of the most common reactor designs in use.

32 min
Nuclear Accidents and Lessons Learned

18: Nuclear Accidents and Lessons Learned

Under specific circumstances, it has been possible for a nuclear reactor to fail catastrophically. Revisit the serious nuclear accidents at Three Mile Island in the US, Chernobyl in the Soviet Union, and Fukushima in Japan, drawing lessons on the fallibility of safety features and human operators. Track the cascading sequence of failures in each accident, leading to core meltdown and radiation release. Consider the health effects, which were severe for emergency workers at Chernobyl.

29 min
The Nuclear Fuel Cycle and Advanced Reactors

19: The Nuclear Fuel Cycle and Advanced Reactors

Explore the current state of fission power, now in its third generation since the dawn of the nuclear age, with a fourth generation in the works. Today’s nuclear plants are designed to produce power more cheaply, more safely, with less waste, and less risk of proliferation than earlier designs. Survey the latest technology, from advanced light water reactors to molten salt and thorium reactors.

29 min
Nuclear Fusion: Obstacles and Achievements

20: Nuclear Fusion: Obstacles and Achievements

The holy grail of nuclear power is fusion, which has been tantalizingly out of reach for decades. Learn why fusion power is so desirable and so difficult to achieve. Study the different strategies for attaining a contained, self-sustaining thermonuclear reaction, focusing on the tokamak, which confines a high-temperature plasma in a powerful toroidal magnetic field.

28 min
Killing Cancer with Isotopes, X-Rays, Protons

21: Killing Cancer with Isotopes, X-Rays, Protons

High-energy radiation has been used against cancer tumors since the discovery of X-rays in 1895. Discover the powerful arsenal of radiation sources and procedures that radiation oncologists use today. Visit the Hampton University Proton Therapy Institute to look at a technique that targets cancer cells with remarkable precision, while sparing the surrounding tissues.

28 min
Medical Imaging: CT, PET, SPECT, and MRI

22: Medical Imaging: CT, PET, SPECT, and MRI

The ability of radiation to penetrate the body and chart density and metabolic activity has led to a wide range of tools for medical imaging, including mammograms, PET scans, CT scans, bone-density tests, MRI, and other technologies. Learn how these tools work; what they reveal; and when, if ever, the doses of radiation might pose a significant risk.

30 min
Isotopes as Clocks and Fingerprints

23: Isotopes as Clocks and Fingerprints

The steady rate at which unstable isotopes decay, known as their half-life, makes them ideal for dating objects. Identify the radioactive isotopes best-suited for establishing age, such as carbon-14 for organic remains from human history and uranium-238 for billion-year-old geological formations. Also, see how stable isotopes can be used for fraud detection and studying ancient climates.

30 min
Viewing the World with Radiation

24: Viewing the World with Radiation

Finish the course by surveying the many uses of radiation on Earth and beyond. Passive detectors identify radioactive contamination and clandestine nuclear bomb tests. Cosmic rays can be used to “X-ray” ancient buildings and learn the secrets of their construction. And, see why some scientists speculate that humans thrive on Earth thanks to an ancient bath of radiation from a supernova explosion.

33 min