Here is a question about this article: Seismology: To better prepare for calamities, Zhang Heng invented a seismometer in 132 CE which provided instant alert to authorities in the capital Luoyang that an earthquake had occurred in a location indicated by a specific cardinal or ordinal direction. Although no tremors could be felt in the capital when Zhang told the court that an earthquake had just occurred in the northwest, a message came soon afterwards that an earthquake had indeed struck 400 km (248 mi) to 500 km (310 mi) northwest of Luoyang (in what is now modern Gansu). Zhang called his device the 'instrument for measuring the seasonal winds and the movements of the Earth' (Houfeng didong yi ), so-named because he and others thought that earthquakes were most likely caused by the enormous compression of trapped air. See Zhang's seismometer for further details.
What is the answer to this question: What occurrence is measured by a seismometer?
****
So... an earthquake

Here is a question about this article: France and the Ottoman Empire, united by mutual opposition to Habsburg rule, became strong allies. The French conquests of Nice (1543) and Corsica (1553) occurred as a joint venture between the forces of the French king Francis I and Suleiman, and were commanded by the Ottoman admirals Barbarossa Hayreddin Pasha and Turgut Reis. A month prior to the siege of Nice, France supported the Ottomans with an artillery unit during the 1543 Ottoman conquest of Esztergom in northern Hungary. After further advances by the Turks, the Habsburg ruler Ferdinand officially recognized Ottoman ascendancy in Hungary in 1547.
What is the answer to this question: What were the names of the Ottoman admirals who commanded the conquest of Nice?
****
So... Barbarossa Hayreddin Pasha and Turgut Reis

Here is a question about this article: Napoleon married Josephine de Beauharnais in 1796, when he was 26; she was a 32-year-old widow whose first husband had been executed during the Revolution. Until she met Bonaparte, she had been known as "Rose", a name which he disliked. He called her "Josephine" instead, and she went by this name henceforth. Bonaparte often sent her love letters while on his campaigns. He formally adopted her son Eugene and cousin Stephanie and arranged dynastic marriages for them. Josephine had her daughter Hortense marry Napoleon's brother Louis.
What is the answer to this question: How old was Josephine de Beauharnais when she was married to Napoleon?
****
So...
32