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.
Many street lights are orange because of the type of bulb used. The two main types of street lighting used in the United States are sodium-vapor bulbs and mercury-vapor bulbs. Both types work by applying electricity to a sealed container of gas in order to create light.