Question: The essential usefulness of a transistor comes from its ability to use a small signal applied between one pair of its terminals to control a much larger signal at another pair of terminals. This property is called gain. It can produce a stronger output signal, a voltage or current, which is proportional to a weaker input signal; that is, it can act as an amplifier. Alternatively, the transistor can be used to turn current on or off in a circuit as an electrically controlled switch, where the amount of current is determined by other circuit elements.
Is there an answer to this question: What determines the amount of current in an electrically controlled switch?

Answer: other circuit elements


Question: The Federal Supreme Court has established that treaties are subject to constitutional review and enjoy the same hierarchical position as ordinary legislation (leis ordinárias, or "ordinary laws", in Portuguese). A more recent ruling by the Supreme Court in 2008 has altered that scheme somewhat, by stating that treaties containing human rights provisions enjoy a status above that of ordinary legislation, though they remain beneath the constitution itself. Additionally, as per the 45th amendment to the constitution, human rights treaties which are approved by Congress by means of a special procedure enjoy the same hierarchical position as a constitutional amendment. The hierarchical position of treaties in relation to domestic legislation is of relevance to the discussion on whether (and how) the latter can abrogate the former and vice versa.
Is there an answer to this question: In what year did the Brazilian Supreme Court rule that treaties containing human rights provisions enjoy a status above ordinary legislation?

Answer: 2008


Question: Royal assent is the final stage in the legislative process for acts of the Scottish parliament. The process is governed by sections 28, 32, and 33 of the Scotland Act 1998. After a bill has been passed, the Presiding Officer of the Scottish Parliament submits it to the monarch for royal assent after a four-week period, during which the Advocate General for Scotland, the Lord Advocate, the Attorney General or the Secretary of State for Scotland may refer the bill to the Supreme Court of the United Kingdom (prior to 1 October 2009, the Judicial Committee of the Privy Council) for review of its legality. Royal assent is signified by letters patent under the Great Seal of Scotland in the following form which is set out in The Scottish Parliament (Letters Patent and Proclamations) Order 1999 (SI 1999/737) and of which notice is published in the London, Edinburgh, and Belfast Gazettes:
Is there an answer to this question: Before a bill is passed, the Presiding Officer of the Sottish Parliament does what?

Answer: unanswerable


Question: During the Hundred Years' War, the army of the Duke of Burgundy and a force of about two hundred English soldiers occupied Paris from May 1420 until 1436. They repelled an attempt by Joan of Arc to liberate the city in 1429. A century later, during the French Wars of Religion, Paris was a stronghold of the Catholic League. On 24 August 1572, Paris was the site of the St. Bartholomew's Day massacre, when thousands of French Protestants were killed. The last of these wars, the eighth one, ended in 1594, after Henri IV had converted to Catholicism and was finally able to enter Paris as he supposedly declared Paris vaut bien une messe ("Paris is well worth a Mass"). The city had been neglected for decades; by the time of his assassination in 1610, Henry IV had rebuilt the Pont Neuf, the first Paris bridge with sidewalks and not lined with buildings, linked with a new wing the Louvre to the Tuileries Palace, and created the first Paris residential square, the Place Royale, now Place des Vosges.
Is there an answer to this question: Who tried to liberate the city in 1429?

Answer:
Joan of Arc