Question: Niels Bohr introduced the first quantized model of the atom in 1913, in an attempt to overcome a major shortcoming of Rutherford's classical model. In classical electrodynamics, a charge moving in a circle should radiate electromagnetic radiation. If that charge were to be an electron orbiting a nucleus, the radiation would cause it to lose energy and spiral down into the nucleus. Bohr solved this paradox with explicit reference to Planck's work: an electron in a Bohr atom could only have certain defined energies En
Is there an answer to this question: Who modeled the molecule in 1918, challenging Rutherford's model?

Answer: unanswerable

Question: On March 27, 1964, the massive Good Friday earthquake killed 133 people and destroyed several villages and portions of large coastal communities, mainly by the resultant tsunamis and landslides. It was the second-most-powerful earthquake in the recorded history of the world, with a moment magnitude of 9.2. It was over one thousand times more powerful than the 1989 San Francisco earthquake. The time of day (5:36 pm), time of year and location of the epicenter were all cited as factors in potentially sparing thousands of lives, particularly in Anchorage.
Is there an answer to this question: How did the Good Friday earthquake compare to the 1998 San Francisco earthquake?

Answer: unanswerable

Question: During the 19th century, Paris was the home and subject for some of France's greatest writers, including Charles Baudelaire, Stephane Mallarme, Merimee, Alfred de Musset, Marcel Proust, Emile Zola, Alexandre Dumas, Gustave Flaubert, Guy de Maupassant and Honore de Balzac. Victor Hugo's The Hunchback of Notre Dame inspired the renovation of its setting, the Notre-Dame de Paris. Another of Victor Hugo's works, Les Miserables, written while he was in exile outside France during the Second Empire, described the social change and political turmoil in Paris in the early 1830s. One of the most popular of all French writers, Jules Verne, worked at the Theatre Lyrique and the Paris stock exchange, while he did research for his stories at the National Library.
Is there an answer to this question: Where did Jules Verne work during the day?

Answer: Theatre Lyrique and the Paris stock exchange

Question: In the following year, Bell became professor of Vocal Physiology and Elocution at the Boston University School of Oratory. During this period, he alternated between Boston and Brantford, spending summers in his Canadian home. At Boston University, Bell was "swept up" by the excitement engendered by the many scientists and inventors residing in the city. He continued his research in sound and endeavored to find a way to transmit musical notes and articulate speech, but although absorbed by his experiments, he found it difficult to devote enough time to experimentation. While days and evenings were occupied by his teaching and private classes, Bell began to stay awake late into the night, running experiment after experiment in rented facilities at his boarding house. Keeping "night owl" hours, he worried that his work would be discovered and took great pains to lock up his notebooks and laboratory equipment. Bell had a specially made table where he could place his notes and equipment inside a locking cover. Worse still, his health deteriorated as he suffered severe headaches. Returning to Boston in fall 1873, Bell made a fateful decision to concentrate on his experiments in sound.
Is there an answer to this question: What health condition did Bell start to have?

Answer:
headaches