2. What did Heisenberg achieve in 1924?
(a) He got married
(b) He finished his doctorate
(c) He graduated from college
(d) He learned about the atom

3. How does Heisenberg characterize their current situation?
(a) Impossibly difficult
(b) Irrational
(c) Challenging
(d) Mildly uncomfortable

4. What inspired the Nazi’s nickname for Heisenberg?
(a) His interest in theoretical physics
(b) His mistaken calculations
(c) His interest in atomic physics
(d) His loyalty to their cause

5. How does Heisenberg propose that Bohr protect himself?
(a) Flee the country
(b) Come to Germany
(c) De-bug his home
(d) Make friends at the Embassy

6. How often has Bohr gone skiing since Heisenberg last saw him?
(a) Every winter
(b) Rarely
(c) Not at all.
(d) Occasionally

7. In what area did Bohr make his first big discovery?
(a) Atomic physics
(b) Quantum theory
(c) General mechanics
(d) Fission

8. Where did Bohr have his most important insight, according to Heisenberg?
(a) Columbia
(b) Princeton
(c) Chicago
(d) Oxford

9. Who is protecting the Bohrs, according to Heisenberg?
(a) The German Embassy
(b) The Americans
(c) The English
(d) The Danes

10. Why is Heisenberg not in touch with the English physicists?
(a) Their countries are at war
(b) He has fallen out with them
(c) Communications methods aren’t sophisticated enough
(d) They are ignoring him

11. Where does Heisenberg invite Bohr?
(a) To Elsinore
(b) To Tisvilde
(c) To the USA
(d) To Germany

12. In what month did the 1914 meeting actually take place?
(a) September
(b) October
(c) November
(d) December

13. How was the Gestapo monitoring Heisenberg?
(a) With aerial surveillance
(b) With microphones
(c) With spies
(d) They weren’t

14. What prevented Heisenberg’s last visit to the Bohrs?
(a) His marriage
(b) The outbreak of war
(c) The death of their child
(d) An argument

15. What does Heisenberg feel, approaching the door to the Bohr’s home?
(a) Pride
(b) Fear
(c) Pleasure
(d) Annoyance