Question: Despite significant European success during the 1970s and early 1980s, the late '80s had marked a low point for English football. Stadiums were crumbling, supporters endured poor facilities, hooliganism was rife, and English clubs were banned from European competition for five years following the Heysel Stadium disaster in 1985. The Football League First Division, which had been the top level of English football since 1888, was well behind leagues such as Italy's Serie A and Spain's La Liga in attendances and revenues, and several top English players had moved abroad.
Try to answer this question if possible: In which year were English football clubs banned from competition in Europe?
Answer: 1985
Question: An antenna transmits and receives radio waves with a particular polarization which can be reoriented by tilting the axis of the antenna in many (but not all) cases. The physical size of an antenna is often a practical issue, particularly at lower frequencies (longer wavelengths). Highly directional antennas need to be significantly larger than the wavelength. Resonant antennas usually use a linear conductor (or element), or pair of such elements, each of which is about a quarter of the wavelength in length (an odd multiple of quarter wavelengths will also be resonant). Antennas that are required to be small compared to the wavelength sacrifice efficiency and cannot be very directional. Fortunately at higher frequencies (UHF, microwaves) trading off performance to obtain a smaller physical size is usually not required.
Try to answer this question if possible: What is the essential difference in radio waves transmitted by an antenna?
Answer: polarization
Question: In the late 17th century, Gottfried Leibniz proposed the idea of the Latin: vis viva, or living force, which defined as the product of the mass of an object and its velocity squared; he believed that total vis viva was conserved. To account for slowing due to friction, Leibniz theorized that thermal energy consisted of the random motion of the constituent parts of matter, a view shared by Isaac Newton, although it would be more than a century until this was generally accepted. The modern analog of this property, kinetic energy, differs from vis viva only by a factor of two.
Try to answer this question if possible: Who proposed the idea of the Italian: vis viva?
Answer: unanswerable
Question: The most famous groups are the chirigotas, choirs and comparsas. The chirigotas are well known witty, satiric popular groups who sing about politics, new times and household topics, wearing the same costume, which they prepare for the whole year. The Choirs (coros) are wider groups that go on open carts through the streets singing with an orchestra of guitars and lutes. Their signature piece is the "Carnival Tango", alternating comical and serious repertory. The comparsas are the serious counterpart of the chirigota in Cadiz, and the poetic lyrics and the criticism are their main ingredients. They have a more elaborated polyphony that is easily recognizable by the typical countertenor voice.
Try to answer this question if possible: What do the chirigotas sing about?
Answer:
politics, new times and household topics