The problem: Answer a question about this article:
"At 11 am Petrus Canisius Van Lierde as Papal Sacristan was at the bedside of the dying pope, ready to anoint him. The pope began to speak for the very last time: "I had the great grace to be born into a Christian family, modest and poor, but with the fear of the Lord. My time on earth is drawing to a close. But Christ lives on and continues his work in the Church. Souls, souls, ut omnes unum sint."[c] Van Lierde then anointed his eyes, ears, mouth, hands and feet. Overcome by emotion, Van Lierde forgot the right order of anointing. John XXIII gently helped him before bidding those present a last farewell.
Who was at the dying pope's bedside?
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The answer: Petrus Canisius Van Lierde


Problem: Please answer a question about the following article about Gramophone record:
Stereophonic sound recording, which attempts to provide a more natural listening experience by reproducing the spatial locations of sound sources in the horizontal plane, was the natural extension to monophonic recording, and attracted various alternative engineering attempts. The ultimately dominant "45/45" stereophonic record system was invented by Alan Blumlein of EMI in 1931 and patented the same year. EMI cut the first stereo test discs using the system in 1933 (see Bell Labs Stereo Experiments of 1933) although the system was not exploited commercially until much later.
How was the commercial success of stereo sound in the 1930s?
A: was not exploited commercially until much later.


Question: Read this and answer the question

In 1939, coinciding with the start of World War II, Rene Dubos reported the discovery of the first naturally derived antibiotic, tyrothricin, a compound of 20% gramicidin and 80% tyrocidine, from B. brevis. It was one of the first commercially manufactured antibiotics universally and was very effective in treating wounds and ulcers during World War II. Gramicidin, however, could not be used systemically because of toxicity. Tyrocidine also proved too toxic for systemic usage. Research results obtained during that period were not shared between the Axis and the Allied powers during the war.

What also happened in 1939 besides tyrothricin?
Answer: start of World War II,


Problem: High-power LEDs (HP-LEDs) or high-output LEDs (HO-LEDs) can be driven at currents from hundreds of mA to more than an ampere, compared with the tens of mA for other LEDs. Some can emit over a thousand lumens. LED power densities up to 300 W/cm2 have been achieved. Since overheating is destructive, the HP-LEDs must be mounted on a heat sink to allow for heat dissipation. If the heat from a HP-LED is not removed, the device will fail in seconds. One HP-LED can often replace an incandescent bulb in a flashlight, or be set in an array to form a powerful LED lamp.
Up to how many densities have been achieved with LED power?
The answer is the following: 300 W/cm2


Historical records show evidence of Jewish communities north of the Alps and Pyrenees as early as the 8th and 9th century. By the 11th century Jewish settlers, moving from southern European and Middle Eastern centers, appear to have begun to settle in the north, especially along the Rhine, often in response to new economic opportunities and at the invitation of local Christian rulers. Thus Baldwin V, Count of Flanders, invited Jacob ben Yekutiel and his fellow Jews to settle in his lands; and soon after the Norman Conquest of England, William the Conqueror likewise extended a welcome to continental Jews to take up residence there. Bishop Rüdiger Huzmann called on the Jews of Mainz to relocate to Speyer. In all of these decisions, the idea that Jews had the know-how and capacity to jump-start the economy, improve revenues, and enlarge trade seems to have played a prominent role. Typically Jews relocated close to the markets and churches in town centres, where, though they came under the authority of both royal and ecclesiastical powers, they were accorded administrative autonomy.
What two factors contributed the increase in Jewish settlers along the Rhine and other similar areas?
often in response to new economic opportunities and at the invitation of local Christian rulers


Here is a question about this article: At the end of the Balkan Wars, the extent of Greece's territory and population had increased. In the following years, the struggle between King Constantine I and charismatic Prime Minister Eleftherios Venizelos over the country's foreign policy on the eve of World War I dominated the country's political scene, and divided the country into two opposing groups. During parts of the First World War, Greece had two governments; a royalist pro-German government in Athens and a Venizelist pro-Britain one in Thessaloniki. The two governments were united in 1917, when Greece officially entered the war on the side of the Triple Entente.
What is the answer to this question: How many governments did Greece have in World War 1?
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So...
two