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: According to the theory of relativity, no information can travel faster than the speed of light in vacuum, but this does not mean that the refractive index cannot be lower than 1. The refractive index measures the phase velocity of light, which does not carry information. The phase velocity is the speed at which the crests of the wave move and can be faster than the speed of light in vacuum, and thereby give a refractive index below 1. This can occur close to resonance frequencies, for absorbing media, in plasmas, and for X-rays. In the X-ray regime the refractive indices are lower than but very close to 1 (exceptions close to some resonance frequencies). As an example, water has a refractive index of 6999999999740000000♠0.99999974 = 1 − 6993260000000000000♠2.6×10 for X-ray radiation at a photon energy of 6985480652946099999♠30 keV (0.04 nm wavelength).
 Question: is it possible to have a refractive index less than 1 Context: The Gospel According to Mark (Greek: τὸ κατὰ Μᾶρκον εὐαγγέλιον, to kata Markon euangelion), the second book of the New Testament, is one of the four canonical gospels and one of the three synoptic gospels. It tells of the ministry of Jesus from his baptism by John the Baptist to his death and burial and the discovery of the empty tomb -- there is no genealogy of Jesus or birth narrative, nor, in the original ending at chapter 16, any post-resurrection appearances. It portrays Jesus as a heroic man of action, an exorcist, a healer, and a miracle worker. Jesus is also the Son of God, but he keeps his identity secret, concealing it in parables so that even the disciples fail to understand. All this is in keeping with prophecy, which foretold the fate of the messiah as suffering servant. The gospel ends, in its original version, with the discovery of the empty tomb, a promise to meet again in Galilee, and an unheeded instruction to spread the good news of the resurrection.
 Question: is the book of mark in the new testament Context: A cone is a three-dimensional geometric shape that tapers smoothly from a flat base (frequently, though not necessarily, circular) to a point called the apex or vertex.
 Question: is the tip of a cone a vertex Context: In April 2018, Henry left SM Entertainment following expiration of the contract and effectively left Super Junior-M.
 Question: is henry still a member of super junior Context: After the success of The First Great Train Robbery, Crichton decided to write a screenplay specifically for Sean Connery, as the character of Charles Munro, an archetypal ``great white hunter'' akin to H. Rider Haggard's hero, Allan Quatermain. The film was envisioned as an homage to classic pulp adventure tales, and Crichton successfully pitched the movie to 20th Century Fox in 1979 without a fleshed out story. The film ran into problems however when Crichton learned that he could not use a real gorilla to portray the character of Amy, which was a breaking point for him and he left the project. From there, it was offered to several directors including Steven Spielberg and John Carpenter who both passed. A brief attempt was made to revive the project in the late 1980s but to no avail. Ultimately Frank Marshall would go on to direct the film in the 1990s with little, if any involvement from Crichton.
 Question: did they use real gorillas in the movie congo
Yes
Yes
Yes
Yes
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No