Question
This man commuted 150 miles round-trip every week between Yerkes Observatory and the University of Chicago to teach a single class with just 2 students: T.D. Lee and C.N. Yang, who went on to win the Nobel Prize in Physics in 1957. For 10 points each:
[10m] Name this scientist who developed a tensor version of the virial theorem. Along with Hubble, Spitzer, and Compton, this scientist names one of NASA's four “Great Observatories.”
ANSWER: Subrahmanyan Chandrasekhar
[10h] Chandrasekhar derived the first formula for this phenomenon, in which a large object moving quickly through a region with many other masses experiences braking forces and loses orbital energy.
ANSWER: dynamical friction [or Chandrasekhar friction; prompt on friction]
[10e] Dynamical friction is a driver of the early phase of these events. The Milky Way and Andromeda are predicted to undergo one of these events in about 4.5 billion years.
ANSWER: galaxy mergers [or galaxy collisions]
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Summary
| 2023 BHSU @ Berkeley | 03/18/2023 | Y | 3 | 13.33 | 100% | 33% | 0% |
| 2023 BHSU @ Maryland | 03/11/2023 | Y | 3 | 10.00 | 100% | 0% | 0% |
| 2023 BHSU @ Northwestern | 02/25/2023 | Y | 6 | 16.67 | 100% | 50% | 17% |
| 2023 BHSU Online | 04/15/2023 | Y | 4 | 15.00 | 100% | 50% | 0% |
| 2023 BHSU @ Sheffield | 04/15/2023 | Y | 2 | 10.00 | 100% | 0% | 0% |
| 2023 BHSU @ Waterloo | 04/15/2023 | Y | 3 | 10.00 | 100% | 0% | 0% |
Data
| It's Joever | Berkeley B | 0 | 0 | 10 | 10 |
| Stanford A | Berkeley A | 10 | 0 | 10 | 20 |
| [Insert Lawyer Joke Here] | Stanford B | 0 | 0 | 10 | 10 |
| Fan-tastic Negs and Where to Find Them | Maryland B+ | 0 | 0 | 10 | 10 |
| Maryland A | Glass Onyen: A Knives Out Mystery | 0 | 0 | 10 | 10 |
| Rutgers Diaspora | The Perfection of Wisdom in 8,000 Negs | 0 | 0 | 10 | 10 |
| WUSTL | Amartya Senpai Notice Me | 0 | 0 | 10 | 10 |
| Chicago B | Northwestern | 0 | 10 | 10 | 20 |
| Mojo Shojo | Epic Games | 10 | 0 | 10 | 20 |
| Ohio State | Illinois+ | 0 | 0 | 10 | 10 |
| Chicago A | Purdue | 10 | 0 | 10 | 20 |
| Maryland B- | Michigan | 10 | 0 | 10 | 20 |
| Cornell C++ | Dr. Christopher Manners, MD – Samarra, Iraq | 0 | 0 | 10 | 10 |
| Hutto Hippos | Cornell B- | 10 | 0 | 10 | 20 |
| Rollin in from Sturgis, The Cheyne Gang | Houston and friends | 10 | 0 | 10 | 20 |
| The Enrique Trastamara Military Academy B | What is BH! And you are asking me? BHSU | 0 | 0 | 10 | 10 |
| Buzzers Karamazov | Broken Imperial Nomads | 0 | 0 | 10 | 10 |
| Oxford Hornets | Magisters Ludi | 0 | 0 | 10 | 10 |
| Neg 5! Playing Quizbowl, Liddy Style | Parth et al. | 0 | 0 | 10 | 10 |
| The Passion According to C.H. | Milan et al. | 0 | 0 | 10 | 10 |
| The Vulture's Guide to Buzz | Cameron et al. | 0 | 0 | 10 | 10 |