In the late 1980s, key breakthroughs in GaN epitaxial growth and p-type doping ushered in the modern era of GaN-based optoelectronic devices. Building upon this foundation, Dr. Moustakas at Boston University patented a method for producing high-brightness blue LEDs using a new two-step process. Two years later, in 1993, high-brightness blue LEDs were demonstrated again by Shuji Nakamura of Nichia Corporation using a gallium nitride growth process similar to Dr. Moustakas's. Both Dr. Moustakas and Mr. Nakamura were issued separate patents, which confused the issue of who was the original inventor (partly because although Dr. Moustakas invented his first, Dr. Nakamura filed first).[citation needed] This new development revolutionized LED lighting, making high-power blue light sources practical, leading to the development of technologies like BlueRay, as well as allowing the bright high resolution screens of modern tablets and phones.[citation needed]
In what decade were breakthroughs made that brought in the modern era of GaN-based optoelectronic devices?
1980s


Input: The Times
This 164-page monthly magazine is sold separately from the newspaper of record and is Britain's best-selling travel magazine. The first issue of The Sunday Times Travel Magazine was in 2003, and it includes news, features and insider guides.

In what year was The Times' travel magazine first sold?
Output: 2003


Input: Article: The Bronx Museum of the Arts, founded in 1971, exhibits 20th century and contemporary art through its central museum space and 11,000 square feet (1,000 m2) of galleries. Many of its exhibitions are on themes of special interest to the Bronx. Its permanent collection features more than 800 works of art, primarily by artists from Africa, Asia and Latin America, including paintings, photographs, prints, drawings, and mixed media. The museum was temporarily closed in 2006 while it underwent a major expansion designed by the architectural firm Arquitectonica.

Now answer this question: How large are the Bronx Museum of the Arts' galleries?

Output: 11,000 square feet


Article: By summer 1918, a million American soldiers, or "doughboys" as they were often called, of the American Expeditionary Forces were in Europe under the command of John J. Pershing, with 25,000 more arriving every week. The failure of Germany's spring offensive exhausted its reserves and they were unable to launch new offensives. The German Navy and home front then revolted and a new German government signed a conditional surrender, the Armistice, ending the war against the western front on November 11, 1918.

Question: What was the official name of the American army that went to fight in Europe in 1918?
Ans: American Expeditionary Forces


Here is a question about this article: Vehicles typically include headlamps and tail lights. Headlamps are white or selective yellow lights placed in the front of the vehicle, designed to illuminate the upcoming road and to make the vehicle more visible. Many manufactures are turning to LED headlights as an energy-efficient alternative to traditional headlamps. Tail and brake lights are red and emit light to the rear so as to reveal the vehicle's direction of travel to following drivers. White rear-facing reversing lamps indicate that the vehicle's transmission has been placed in the reverse gear, warning anyone behind the vehicle that it is moving backwards, or about to do so. Flashing turn signals on the front, side, and rear of the vehicle indicate an intended change of position or direction. In the late 1950s, some automakers began to use electroluminescent technology to backlight their cars' speedometers and other gauges or to draw attention to logos or other decorative elements.
What is the answer to this question: What color are headlamps on a vehicle?
****
So... white or selective yellow


Article: Gautama first went to study with famous religious teachers of the day, and mastered the meditative attainments they taught. But he found that they did not provide a permanent end to suffering, so he continued his quest. He next attempted an extreme asceticism, which was a religious pursuit common among the śramaṇas, a religious culture distinct from the Vedic one. Gautama underwent prolonged fasting, breath-holding, and exposure to pain. He almost starved himself to death in the process. He realized that he had taken this kind of practice to its limit, and had not put an end to suffering. So in a pivotal moment he accepted milk and rice from a village girl and changed his approach. He devoted himself to anapanasati meditation, through which he discovered what Buddhists call the Middle Way (Skt. madhyamā-pratipad): a path of moderation between the extremes of self-indulgence and self-mortification.[web 2][web 3]

Question: What are some of the practices Gautama underwent on his quest?
Ans:
prolonged fasting, breath-holding, and exposure to pain