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: Richmond, Virginia, served as the capital of the Confederate States of America for almost the whole of the American Civil War. Not only was Richmond the seat of political power for the Confederacy, it served as a vital source of munitions, armament, weapons, supplies, and manpower for the Confederate States Army and Confederate States Navy, and as such would have been defended at all costs regardless of its political status. The city was less than 100 miles (160 km) from the Union capital in Washington, D.C..
 Question: was richmond virginia the capital of the confederacy Context: Wood gasifiers can power either spark ignition engines, where 100% of the normal fuel can be replaced with little change to the carburation, or in a Diesel engine, feeding the gas into the air inlet that is modified to have a throttle valve, if it didn't have it already. On Diesel engines the Diesel fuel is still needed to ignite the gas mixture, so a mechanically regulated Diesel engine's ``stop'' linkage and probably ``throttle'' linkage must be modified to always give the engine a little bit of injected fuel, often under the standard idle per-injection volume. Wood can be used to power cars with ordinary internal combustion engines if a wood gasifier is attached. This was quite popular during World War II in several European, African and Asian countries, because the war prevented easy and cost-effective access to oil. In more recent times, wood gas has been suggested as a clean and efficient method to heat and cook in developing countries, or even to produce electricity when combined with an internal combustion engine. Compared to World War II technology, gasifiers have become less dependent on constant attention due to the use of sophisticated electronic control systems, but it remains difficult to get clean gas from them. Purification of the gas and feeding it into natural gas pipelines is one variant to link it to the existing refueling infrastructure. Liquefaction by the Fischer--Tropsch process is another possibility.
 Question: can a diesel engine run on wood gas Context: The fifteenth season of the American police procedural drama NCIS premiered on September 26, 2017, in the same time slot as in the previous seasons, Tuesdays at 8 PM. The season premiere was watched by 17.42 milion viewers, picking up two months after Gibbs and McGee were last seen fighting a group of rebels in Paraguay and focued on the aftermath of those events. The season concluded on May 22, 2018 and contained 24 episodes.
 Question: will there be a season 15 of ncis Context: At the age of 14, Ingalls suffered an illness--thought to be scarlet fever--at the time believed to have caused her to lose her eyesight. A 2013 study published in the journal Pediatrics, concluded it was actually viral meningoencephalitis that caused Ingalls' blindness, based on evidence from first-hand accounts and newspaper reports of her illness as well as relevant school registries and epidemiologic data on blindness and infectious diseases. Between 1881 and 1889, Ingalls attended the Iowa Braille and Sight Saving School in Vinton, Iowa.
 Question: was mary from little house on the prairie blind in real life
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