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: Atomic radii vary in a predictable and explicable manner across the periodic table. For instance, the radii generally decrease along each period (row) of the table, from the alkali metals to the noble gases; and increase down each group (column). The radius increases sharply between the noble gas at the end of each period and the alkali metal at the beginning of the next period. These trends of the atomic radii (and of various other chemical and physical properties of the elements) can be explained by the electron shell theory of the atom; they provided important evidence for the development and confirmation of quantum theory. The atomic radii decrease across the Periodic Table because as the atomic number increases, the number of protons increases across the period, but the extra electrons are only added to the same quantum shell. Therefore, the effective nuclear charge towards the outermost electrons increases, drawing the outermost electrons closer. As a result, the electron cloud contracts and the atomic radius decrease.
 Question: is there a relationship between atomic number and atomic radii for elements in a single period Context: Some animals, such as tortoises and hamsters, blink their eyes independently of each other. Humans use winking, the blinking of only one eye, as a form of body language.
 Question: can you blink one eye at a time Context: Part 608, section 3.2 of the DMM (U.S. Domestic Mail Manual) groups holidays into ``Widely Observed'' and ``Not Widely Observed''. Holidays ``Widely Observed'' include New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, and Christmas Day. Holidays ``Not Widely Observed'' are Martin Luther King, Jr.'s Birthday; Presidents Day; Columbus Day; and Veterans Day.
 Question: does the united states post office deliver mail on columbus day Context: Hand dishwashing detergents utilize surfactants to play the primary role in cleaning. The reduced surface tension of dishwashing water, and increasing solubility of modern surfactant mixtures, allows the water to run off the dishes in a dish rack very quickly. However, most people also rinse the dishes with pure water to make sure to get rid of any soap residue that could affect the taste of the food.
 Question: can dish detergent be used as a surfactant Context: Captain America: Reborn is a six-issue (originally intended to be five issues) monthly comic book limited series published by Marvel Comics between July 2009 and January 2010. The series was written by Ed Brubaker, illustrated by Bryan Hitch, and inked by Butch Guice. The series reveals the truth regarding the death of the original Captain America, Steve Rogers (as told in the story arc The Death of Captain America) and revives him in the contemporary Marvel Universe.
 Question: does captain america come back to life in the comics
Yes
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Yes