They call it a 'sea shell'.
The small green metal object in "Fahrenheit 451" is a Mechanical Hound, a robotic device used by the fire department to track down and eliminate those who possess books. The Mechanical Hound symbolizes the oppressive control and surveillance in the dystopian society portrayed in the novel.
In the book "Fahrenheit 451" by Ray Bradbury, Faber gives Montag a small metal object containing a concentrated form of a liquor called "Denham's" that can be used to sedate mechanical hounds.
Faber was a traditional name given to several Roman emperors, it means 'from the family name Fabius'.
When you rub a magnet with metal, the metal object becomes temporarily magnetized. This happens because the atoms in the metal align with the magnetic field of the magnet. However, once the magnet is removed, the metal object loses its magnetism.
[object Object]
Copper is a metal that turns green when oxidized.
The electrons in the metal object are repelled by the negatively charged object and will move away from it. This redistribution of electrons can create a temporary separation of charges on the surface of the metal object.
In order to know what a metal object is on a dorm wall one would need more information. If a description of the metal object is given one may be able to determine what the object is.
Metals are not invented by anyone.
Heat transfers to, and from, any object, not just metal object. Metals in general are very good conductors of heat; as a result, you might feel the temperature more easily when you touch a metal object. If you get burned more easily by a metal object than by a wooden object, for example, both at the same temperature, this is a direct result of heat conduction.
Yes, metal objects can become charged by conduction if they come into contact with a charged object. If a charged object is connected to a metal object, the excess charge can flow through the metal by conduction, causing the metal object to become charged.
in 1810