Antennas are characterized by a number of performance measures which a user would be concerned with in selecting or designing an antenna for a particular application. Chief among these relate to the directional characteristics (as depicted in the antenna's radiation pattern) and the resulting gain. Even in omnidirectional (or weakly directional) antennas, the gain can often be increased by concentrating more of its power in the horizontal directions, sacrificing power radiated toward the sky and ground. The antenna's power gain (or simply "gain") also takes into account the antenna's efficiency, and is often the primary figure of merit.
How could one deide what type of antenna is nedded for a project?
performance measures

Input: Computer
Many mechanical aids to calculation and measurement were constructed for astronomical and navigation use. The planisphere was a star chart invented by Abu Rayhan al-Biruni in the early 11th century. The astrolabe was invented in the Hellenistic world in either the 1st or 2nd centuries BC and is often attributed to Hipparchus. A combination of the planisphere and dioptra, the astrolabe was effectively an analog computer capable of working out several different kinds of problems in spherical astronomy. An astrolabe incorporating a mechanical calendar computer and gear-wheels was invented by Abi Bakr of Isfahan, Persia in 1235. Abu Rayhan al-Biruni invented the first mechanical geared lunisolar calendar astrolabe, an early fixed-wired knowledge processing machine with a gear train and gear-wheels, circa 1000 AD.

The first astrolabe with a mechanical calendar was invented where?
Output: Persia

Input: Article: Chopin's original publishers included Maurice Schlesinger and Camille Pleyel. His works soon began to appear in popular 19th-century piano anthologies. The first collected edition was by Breitkopf & Hartel (18781902). Among modern scholarly editions of Chopin's works are the version under the name of Paderewski published between 1937 and 1966 and the more recent Polish "National Edition", edited by Jan Ekier, both of which contain detailed explanations and discussions regarding choices and sources.

Now answer this question: Who released the first collection of Chopin's works?

Output: Breitkopf & Hartel

Article: Prompted by the chaotic torch relays in Western Europe and North America, the president of the International Olympic Committee, Jacques Rogge described the situation as a "crisis" for the organization and stated that any athletes displaying Tibetan flags at Olympic venues could be expelled from the games. though he stopped short of cancelling the relay altogether despite calls to do so by some IOC members. The outcome of the relay influenced the IOC's decision to scrap global relays in future editions of the games.

Question: Because of the relay issues, IOC decided to no longer have what in subsequent Olympics?
Ans: global relays

Here is a question about this article: Scientific and technological research activities in Portugal are mainly conducted within a network of R&D units belonging to public universities and state-managed autonomous research institutions like the INETI Instituto Nacional de Engenharia, Tecnologia e Inovacao and the INRB Instituto Nacional dos Recursos Biologicos. The funding and management of this research system is mainly conducted under the authority of the Ministry of Science, Technology and Higher Education (MCTES) itself and the MCTES's Fundacao para a Ciencia e Tecnologia (FCT). The largest R&D units of the public universities by volume of research grants and peer-reviewed publications, include biosciences research institutions like the Instituto de Medicina Molecular, the Centre for Neuroscience and Cell Biology, the IPATIMUP, the Instituto de Biologia Molecular e Celular and the Abel Salazar Biomedical Sciences Institute.
What is the answer to this question: By which ministry is authority granted for funding and managing Portugal's research system?
****
So... Ministry of Science, Technology and Higher Education (MCTES)

Article: Lafayette Park is a revitalized neighborhood on the city's east side, part of the Ludwig Mies van der Rohe residential district. The 78-acre (32 ha) development was originally called the Gratiot Park. Planned by Mies van der Rohe, Ludwig Hilberseimer and Alfred Caldwell it includes a landscaped, 19-acre (7.7 ha) park with no through traffic, in which these and other low-rise apartment buildings are situated. Immigrants have contributed to the city's neighborhood revitalization, especially in southwest Detroit. Southwest Detroit has experienced a thriving economy in recent years, as evidenced by new housing, increased business openings and the recently opened Mexicantown International Welcome Center.

Question: Who planned Lafayette Park?
Ans:
Mies van der Rohe, Ludwig Hilberseimer and Alfred Caldwell