Context: Death from laughter is a rare form of death, usually resulting from cardiac arrest or asphyxiation, caused by a fit of laughter. Instances of death by laughter have been recorded from the times of ancient Greece to the modern day.
 Question: can you have a heart attack from laughing Context: A second problem is that nominally ``twelve-volt'' power in cars fluctuates widely. The actual voltage will be approximately 12.5 volts when dormant (less in cold conditions), approximately 14.5 volts when the engine and the alternator/generator are operating (more when cold), and may briefly drop as low as 5--6 volts during engine start. When used, DC to DC converters will usually compensate for small fluctuations, but reliable power may not be available without an independent battery-powered uninterruptible power supply.
 Question: does the car have to be on for the cigarette lighter to work Context: Entry into Canada is solely determined by Canada Border Services Agency (CBSA) officials in accordance with Canadian law. Visitors are required to have the necessary travel documentation and be in good health. If asked, they must satisfy an immigration officer of ties to their country of origin, such as a job, home, and family. They must also satisfy the officer that they will leave Canada at the end of their visit. Additionally, they must have sufficient money for their stay, and all items belonging to an individual, including the vehicle the individual may be traveling in, are subject to search by the CBSA.
 Question: does it cost money to get into canada Context: Tectonic plates are composed of oceanic lithosphere and thicker continental lithosphere, each topped by its own kind of crust. Along convergent boundaries, subduction, or one plate moving under another, carries the lower one down into the mantle; the material lost is roughly balanced by the formation of new (oceanic) crust along divergent margins by seafloor spreading. In this way, the total surface of the lithosphere remains the same. This prediction of plate tectonics is also referred to as the conveyor belt principle. Earlier theories, since disproven, proposed gradual shrinking (contraction) or gradual expansion of the globe.
 Question: can a single tectonic plate contain both oceanic and continental crust Context: Many marathon champions have repeated their feats in following years. The record for most repeated championships stands at 10, held by Ernst van Dyk in the Men's Wheelchair division. In the Men's Open division, Clarence DeMar holds the distinction of most wins with seven, and Catherine Ndereba tops the Women's Open division with four. The United States has had more winners than any other country, followed by Kenya and Canada. The United States and Canada dominated the early years of the race, and it was not until the 36th race, in 1932, that someone from outside North America, Paul de Bruyn of Germany, won the race. During the period from World War II through the 1980s, there was much more national diversity among Boston Marathon champions, but the last two decades have seen Kenya emerge as the dominant nationality, especially in the Men's Open division, which (as of 2015) has been won by Kenyans in 19 of the past 25 years.
 Question: has a woman ever won the boston marathon
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