Professor at University of Chicago

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Stuxnet—The First Cyber Guided Missile
Episode 1 of Thinking about Cybersecurity
Your introduction to the fascinating--and fascinatingly dangerous--world of cybersecurity begins with the story of "Stuxnet." Learn how this unique piece of malware, which shut down a uranium enrichment facility in Iran, signaled the dawn of a new age in which…
Why Time Is a Mystery
Episode 1 of Mysteries of Modern Physics: Time Series
Begin your study of the physics of time with these questions: What is a clock? What does it mean to say that "time passes"? What is the "arrow of time"? Then look at the concept of entropy and how it…
The Incredible Scope of Cyberspace
Episode 2 of Thinking about Cybersecurity
What makes the Internet so vulnerable is its ability to connect, and to be connected to, anyone and almost anything. Here, explore how cyberspace works. You'll learn what goes on behind the scenes of a simple Internet search, how a…
What Is Time?
Episode 2 of Mysteries of Modern Physics: Time Series
Approach time from a philosophical perspective. "Presentism" holds that the past and future are not real; only the present moment is real. However, the laws of physics appear to support "eternalism"--the view that all of the moments in the history…
The Five Gateways of Internet Vulnerability
Episode 3 of Thinking about Cybersecurity
Take a closer look at the cyber domain's inherent vulnerability to cyber threats. Professor Rosenzweig explains the five key gateways to this vulnerability, including the Internet's ability to destroy time and space; allow users to act in ways they can't…
Of Viruses, Botnets, and Logic Bombs
Episode 4 of Thinking about Cybersecurity
Learn about some of the most dangerous ways people can exploit the Internet's vulnerabilities, including DDoS attacks (which flood websites with connection requests), "Trojans" (malware hidden inside an innocent piece of information), and "botnets" (which control computers like puppets). Then,…
Big Data—“They” Know Everything about You
Episode 12 of Thinking about Cybersecurity
In the first of two episodes on personal data tracking and privacy, ponder the problem of "Big Data"--where your Internet searches can be tracked, your cellphone can broadcast your geographical location instantly, and your online purchases can be catalogued. It's…
The Importance of the Higgs Boson
Episode 1 of The Higgs Boson and Beyond Course
Why was the discovery of the Higgs boson such a big deal? That's the key question that Professor Carroll tackles in his illuminating introduction. Take a fascinating dive into the world of modern particle physics and see how the Higgs…
Privacy for the Cyber Age
Episode 13 of Thinking about Cybersecurity
It appears our current conceptions of privacy in cyberspace will disappear. So what can we do about it? By exploring how the government and private sector use "Big Data"--and how "Big Data" can keep the government honest--you'll discover insights into…
Time’s Arrow
Episode 4 of Mysteries of Modern Physics: Time Series
Embark on the quest that will occupy the rest of the course: Why is there an arrow of time? Explore how memory and aging orient us in time. Then look at irreversible processes, such as an egg breaking or ice…
Quantum Field Theory
Episode 2 of The Higgs Boson and Beyond Course
Toss out the textbook image of electrons circling an atom's nucleus. This lecture explores the big twist of quantum field theory: The world isn't really made of particles. They're fascinating and necessary figments of quantum mechanics created by observing the…
Keeping Time
Episode 3 of Mysteries of Modern Physics: Time Series
How do we measure the passage of time? Discover that practical concerns have driven the search for more and more accurate clocks. In the 18th century, the problem of determining longitude was solved with a timepiece of unprecedented accuracy. Today's…
The Problem of Identity on the Network
Episode 5 of Thinking about Cybersecurity
Identification is perhaps the single most profound challenge for cybersecurity today. In this episode, delve into the question of network anonymity and identity. Who maintains domain names? How can people obscure their identities for malicious purposes? How are network designers…
Cyber Fraud, Theft, and Organized Crime
Episode 6 of Thinking about Cybersecurity
Professor Rosenzweig leads you on an examination of all-too-common instances of cybercrime that involve fraud and identity theft. You'll encounter crimes that mimic real-world ones (with a computer as the "weapon") and "computer crimes" that are only possible in the…
The Rationale for a Space Telescope
Episode 1 of Experiencing Hubble
Begin your exploration of the scientific stories behind 10 of the most fascinating images made by the Hubble Space Telescope. In this episode, learn about Hubble's design and how its operations were almost cut short by a flaw in its…
Listening In and Going Dark
Episode 14 of Thinking about Cybersecurity
Learn how encryption and wiretapping work in cyberspace, and how both methods are becoming increasingly frustrating for law enforcement and national security officials. This "going dark" phenomenon, as you'll find in this eye-opening discussion, brings benefits and causes problems--and the…
International Governance and the Internet
Episode 10 of Thinking about Cybersecurity
Continue exploring rules and regulations about the Internet, this time on the international level. First, Professor Rosenzweig discusses existing Internet governance and the dynamics leading to change. Then, he assesses some of the barriers to effective international governance of the…
Hacktivists and Insurgency
Episode 7 of Thinking about Cybersecurity
Enter the netherworld of hacktivism, or the use of computer hacking methods to stage protests and make political statements. In this episode, learn to identify and distinguish the "good guys" from the "bad guys" by exploring real-world examples that illustrate…
Nations at Cyber War
Episode 8 of Thinking about Cybersecurity
Turn now to the highest level of cyber conflict: a cyber war between nation-states. What is meant by the term "cyber war"? How does one fight a battle in cyberspace? What do the enemies look like? Do traditional international rules…
The Devil in the Chips—Hardware Failures
Episode 15 of Thinking about Cybersecurity
Hardware-based threats are one of the most vexing problems in the entire cybersecurity domain. How do we know that our machines will actually do what we tell them to do? Why is compromised hardware such a critical threat to cybersecurity?…