IN: Is it true that is it possible for an element to have different types of atoms?

The number of protons within the atom's nucleus is called atomic number and is equal to the number of electrons in the neutral (non-ionized) atom. Each atomic number identifies a specific element, but not the isotope; an atom of a given element may have a wide range in its number of neutrons. The number of nucleons (both protons and neutrons) in the nucleus is the atom's mass number, and each isotope of a given element has a different mass number.

OUT: yes

IN: Is it true that are there red light cameras for left turns?

A red light camera (short for red light running camera) is a type of traffic enforcement camera that captures an image of a vehicle which has entered an intersection in spite of the traffic signal indicating red (during the red phase). By automatically photographing vehicles that run red lights, the photo is evidence that assists authorities in their enforcement of traffic laws. Generally the camera is triggered when a vehicle enters the intersection (passes the stop-bar) after the traffic signal has turned red. Typically, a law enforcement official will review the photographic evidence and determine whether a violation occurred. A citation is then usually mailed to the owner of the vehicle found to be in violation of the law. These cameras are used worldwide, in countries including: Australia, New Zealand, Canada, the United Kingdom, Singapore and the United States. If a proper identification cannot be made, instead of a ticket, some police departments send out a notice of violation to the owner of the vehicle, requesting identifying information so that a ticket may be issued later.

OUT: no

IN: Is it true that was the great chicago fire started by a cow?

The fire started at about 9:00 p.m. on October 8, in or around a small barn belonging to the O'Leary family that bordered the alley behind 137 DeKoven Street. The shed next to the barn was the first building to be consumed by the fire, but city officials never determined the exact cause of the blaze. There has, however, been much speculation over the years. The most popular tale blames Mrs. O'Leary's cow, who allegedly knocked over a lantern; others state that a group of men were gambling inside the barn and knocked over a lantern. Still other speculation suggests that the blaze was related to other fires in the Midwest that day.

OUT: no

IN: Is it true that is there a difference between 9x19 and 9mm luger?

The 919mm Parabellum is a firearms cartridge that was designed by Georg Luger and introduced in 1902 by the German weapons manufacturer Deutsche Waffen und Munitionsfabriken (DWM) (German Weapons and Munitions Factory) for their Luger semi-automatic pistol. For this reason, it is designated as the 9mm Luger by the Sporting Arms and Ammunition Manufacturers' Institute (SAAMI), and the 9 mm Luger by the Commission Internationale Permanente pour l'Epreuve des Armes a Feu Portatives (CIP).

OUT:
no