Article: Because of their long life, fast switching times, and their ability to be seen in broad daylight due to their high output and focus, LEDs have been used in brake lights for cars' high-mounted brake lights, trucks, and buses, and in turn signals for some time, but many vehicles now use LEDs for their rear light clusters. The use in brakes improves safety, due to a great reduction in the time needed to light fully, or faster rise time, up to 0.5 second faster[citation needed] than an incandescent bulb. This gives drivers behind more time to react. In a dual intensity circuit (rear markers and brakes) if the LEDs are not pulsed at a fast enough frequency, they can create a phantom array, where ghost images of the LED will appear if the eyes quickly scan across the array. White LED headlamps are starting to be used. Using LEDs has styling advantages because LEDs can form much thinner lights than incandescent lamps with parabolic reflectors.

Question: What types of light can LEDs form better than incandescent?
Ans: thinner


Article: Around this time, tensions began to arise between what was perceived as president Núñez's dictatorial rule and the nationalistic support group, Boixos Nois. The group, identified with a left-wing separatism, repeatedly demanded the resignation of Núñez and openly defied him through chants and banners at matches. At the same time, Barcelona experienced an eruption in skinheads, who often identified with a right-wing separatism. The skinheads slowly transferred the Boixos Nois' ideology from liberalism to fascism, which caused division within the group and a sudden support for Núñez's presidency. Inspired by British hooligans, the remaining Boixos Nois became violent, causing havoc leading to large-scale arrests.

Question: What did the resulting split in the Boixos Nois group cause many to support?
Ans: Núñez's presidency


Article: The first known use of the word "computer" was in 1613 in a book called The Yong Mans Gleanings by English writer Richard Braithwait: "I haue read the truest computer of Times, and the best Arithmetician that euer breathed, and he reduceth thy dayes into a short number." It referred to a person who carried out calculations, or computations. The word continued with the same meaning until the middle of the 20th century. From the end of the 19th century the word began to take on its more familiar meaning, a machine that carries out computations.

Question: When was the first known use of the word "computer"?
Ans: 1613


Article: Over two-thirds of Melburnians speak only English at home (68.1%). Chinese (mainly Cantonese and Mandarin) is the second-most-common language spoken at home (3.6%), with Greek third, Italian fourth and Vietnamese fifth, each with more than 100,000 speakers. Although Victoria's net interstate migration has fluctuated, the population of the Melbourne statistical division has grown by about 70,000 people a year since 2005. Melbourne has now attracted the largest proportion of international overseas immigrants (48,000) finding it outpacing Sydney's international migrant intake on percentage, along with having strong interstate migration from Sydney and other capitals due to more affordable housing and cost of living.

Question: What is the second-most-common language in Melborne?
Ans:
Chinese