Throughout the 20th century air defence was one of the fastest-evolving areas of military technology, responding to the evolution of aircraft and exploiting various enabling technologies, particularly radar, guided missiles and computing (initially electromechanical analog computing from the 1930s on, as with equipment described below). Air defence evolution covered the areas of sensors and technical fire control, weapons, and command and control. At the start of the 20th century these were either very primitive or non-existent.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): In addition to radar and computing, what else did air defence want to exploit?
Ah, so.. guided missiles

After his arrival in 1674, Captain Damian de Esplana ordered the arrest of rebels who attacked the population of certain towns. Hostilities eventually led to the destruction of villages such as Chochogo, Pepura, Tumon, Sidia-Aty, Sagua, Nagan and Ninca.:7475 Starting in June 1676, the first Spanish Governor of Guam, Capt. Francisco de Irrisarri y Vinar controlled internal affairs more strictly than his predecessors in order to curb tensions. He also ordered the construction of schools, roads and other infrastructure.:7576 Later, Capt. Jose de Quiroga arrived in 1680 and continued some of the development projects started by his predecessors. He also continued the search for the rebels who had assassinated Father San Vitores, resulting in campaigns against the rebels which were hiding out in some islands, eventually leading to the death of Matapang, Hurao and Aguarin.:7778 Quiroga brought some natives from the northern islands to Guam, ordering the population to live in a few large villages.:7879 These included Jinapsan, Umatac, Pago, Agat and Inarajan, where he built a number of churches.:79 By July 1695, Quiroga had completed the pacification process in Guam, Rota, Tinian and Aguigan.:85
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): When did Captain Damian de Esplana arrive?
Ah, so.. 1674

On 11 July 2011, Neptune completed its first full barycentric orbit since its discovery in 1846, although it did not appear at its exact discovery position in the sky, because Earth was in a different location in its 365.26-day orbit. Because of the motion of the Sun in relation to the barycentre of the Solar System, on 11 July Neptune was also not at its exact discovery position in relation to the Sun; if the more common heliocentric coordinate system is used, the discovery longitude was reached on 12 July 2011.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Why didn't Neptune appear to be in it's exact discover position?
Ah, so..
Earth was in a different location