Problem: Light-emitting diode:

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.

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


Problem: In a grounded-emitter transistor circuit, such as the light-switch circuit shown, as the base voltage rises, the emitter and collector currents rise exponentially. The collector voltage drops because of reduced resistance from collector to emitter. If the voltage difference between the collector and emitter were zero (or near zero), the collector current would be limited only by the load resistance (light bulb) and the supply voltage. This is called saturation because current is flowing from collector to emitter freely. When saturated, the switch is said to be on.
What changes the most in a grounded-emitter transistor circuit?
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Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In World War II, the United States, during the Gilbert and Marshall Islands campaign, invaded and occupied the islands in 1944, destroying or isolating the Japanese garrisons. In just one month in 1944, Americans captured Kwajalein Atoll, Majuro and Enewetak, and, in the next two months, the rest of the Marshall Islands, except for Wotje, Mili, Maloelap and Jaluit.
During what conflict did the US occupy the Marshall Islands?
A: World War II


Context and question: The traditional Greek homelands have been the Greek peninsula and the Aegean Sea, the Southern Italy (Magna Graecia), the Black Sea, the Ionian coasts of Asia Minor and the islands of Cyprus and Sicily. In Plato's Phaidon, Socrates remarks, "we (Greeks) live around a sea like frogs around a pond" when describing to his friends the Greek cities of the Aegean. This image is attested by the map of the Old Greek Diaspora, which corresponded to the Greek world until the creation of the Greek state in 1832. The sea and trade were natural outlets for Greeks since the Greek peninsula is rocky and does not offer good prospects for agriculture.
When did changes of this ancient map not become notable?
Answer: unanswerable


Question: The Saint Helena Constitution took effect in 1989 and provided that the island would be governed by a Governor and Commander-in-Chief, and an elected Executive and Legislative Council. In 2002, the British Overseas Territories Act 2002 granted full British citizenship to the islanders, and renamed the Dependent Territories (including Saint Helena) the British Overseas Territories. In 2009, Saint Helena and its two territories received equal status under a new constitution, and the British Overseas Territory was renamed Saint Helena, Ascension and Tristan da Cunha.
Is there an answer to this question: What were the dependent territories renamed to?

Answer: British Overseas Territories


The first half of the 14th century saw much important scientific work being done, largely within the framework of scholastic commentaries on Aristotle's scientific writings. William of Ockham introduced the principle of parsimony: natural philosophers should not postulate unnecessary entities, so that motion is not a distinct thing but is only the moving object and an intermediary "sensible species" is not needed to transmit an image of an object to the eye. Scholars such as Jean Buridan and Nicole Oresme started to reinterpret elements of Aristotle's mechanics. In particular, Buridan developed the theory that impetus was the cause of the motion of projectiles, which was a first step towards the modern concept of inertia. The Oxford Calculators began to mathematically analyze the kinematics of motion, making this analysis without considering the causes of motion.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What theory is based off of projectiles' motion?
Ah, so..
impetus