The island's unique social and economic organisation has evolved over the years, but is based on the principles set out by William Glass in 1817 when he established a settlement based on equality. All Tristan families are farmers, owning their own stock and/or fishing. All land is communally owned. All households have plots of land at The Patches on which they grow potatoes. Livestock numbers are strictly controlled to conserve pasture and to prevent better-off families from accumulating wealth. Unless it votes for a change in its law, no outsiders are allowed to buy land or settle on Tristan; theoretically the whole island would have to be put up for sale. All people including children and pensioners are involved in farming, while adults additionally have salaried jobs working either for the Government, or, a small number in domestic service, and many of the men are involved in the fishing industry, going to sea in good weather. The nominal fishing season lasts 90 days; however during the 2013 fishing season 1 July through 30 September there were only 10 days suitable for fishing.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What is based on principles put into place by William Glass in 2013?
Ah, so.. unanswerable

During the Cold War, American troops and their allies fought Communist forces in Korea and Vietnam. The Korean War began in 1950, when the Soviets walked out of a U.N. Security meeting, removing their possible veto. Under a United Nations umbrella, hundreds of thousands of U.S. troops fought to prevent the takeover of South Korea by North Korea, and later, to invade the northern nation. After repeated advances and retreats by both sides, and the PRC People's Volunteer Army's entry into the war, the Korean Armistice Agreement returned the peninsula to the status quo in 1953.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): In what two countries did the American troops fight Communist forces?
Ah, so.. Korea and Vietnam

LEDs have also been used as a medium-quality voltage reference in electronic circuits. The forward voltage drop (e.g. about 1.7 V for a normal red LED) can be used instead of a Zener diode in low-voltage regulators. Red LEDs have the flattest I/V curve above the knee. Nitride-based LEDs have a fairly steep I/V curve and are useless for this purpose. Although LED forward voltage is far more current-dependent than a Zener diode, Zener diodes with breakdown voltages below 3 V are not widely available.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What LEDs have a not very steep I/V curve?
Ah, so..
unanswerable