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 pendulum is a weight suspended from a pivot so that it can swing freely. When a pendulum is displaced sideways from its resting, equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position. When released, the restoring force acting on the pendulum's mass causes it to oscillate about the equilibrium position, swinging back and forth. The time for one complete cycle, a left swing and a right swing, is called the period. The period depends on the length of the pendulum and also to a slight degree on the amplitude, the width of the pendulum's swing.
 Question: do all pendulums swing at the same rate Context: The traditional and most common support--material to which the paint is applied--for watercolor paintings is paper. Other supports include papyrus, bark papers, plastics, vellum, leather, fabric, wood and canvas. Watercolor paper is often made entirely or partially with cotton, which gives a good texture and minimizes distortion when wet. Watercolors are usually translucent, and appear luminous because the pigments are laid down in a pure form with few fillers obscuring the pigment colors. Watercolors can also be made opaque by adding Chinese white.
 Question: is white color uses in opaque water color Context: Since the early 1990s, red light cameras have been used in the United States in 26 U.S. states and the District of Columbia. Within some states, the cameras may only be permitted in certain areas. For example, in New York State, the Vehicle and Traffic Law permits red light cameras only within cities with a population above 1 million (i.e. New York City), Rochester, Buffalo, Yonkers, and Nassau and Suffolk Counties. In Florida, a state law went into effect on 1 July 2010, which allows all municipalities in the state to use red light cameras on all state-owned rights-of-way and fine drivers who run red lights, with the aim of enforcing safe driving, according to then-Governor Charlie Crist. The name given to the state law is the Mark Wandall Traffic Safety Act, named for a man who was killed in 2003 by a motorist who ran a red light. In addition to allowing the use of cameras, the law also standardizes driver fines. Major cities throughout the US that use red light cameras include Atlanta, Austin, Baltimore, Baton Rouge, Chicago, Dallas, Denver, Los Angeles, Memphis, New Orleans, New York City, Newark, Philadelphia, Phoenix, Raleigh, San Francisco, Seattle, Toledo, and Washington, D.C. Albuquerque has cameras, but in October 2011 local voters approved a ballot measure advising the city council to cease authorizing the red light camera program. The City of Albuquerque ended its red light program on 31 December 2011.
 Question: do all traffic lights have a red light camera
Yes
No
Yes
No