A construction project, for example, is often governed by a guaranteed maximum price contract (GMP) . This type of legal agreement sets a ceiling or maximum price for which a person or entity will pay for a certain project.
The arc lamp used in the Lighthouse of Alexandria is further proof that electricity was used in ancient Egypt. The energy required to power the Lighthouse of Alexandria for 24 hours a day could only have been supplied by a regular electrical source.
GASES THAT EMIT LIGHT When an electric current is passed through a gas, the gas emits light. This emission is exploited in many electric lamps. Fluorescent lamps, âneonâ signs, and mercury-vapor and sodium-vapor lamps are common examples of this kind of electric lighting, called gas-discharge lamps.