- In 1977 one of the most important films ever made was released, Star Wars. Following this, the film industry underwent a dramatic reinvention, becoming more commercially orientated. Many new blockbuster franchises were made in the wake of Star Wars - Indiana Jones, Back to the Future and Ghostbusters to name a few. This video explores the impact Star Wars had on the film industry, and how its legacy is still felt today.
- Incandescent light bulb (Wikipedia)
An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a filament that is heated until it glows. The filament is enclosed in a glass bulb that is either evacuated or filled with inert gas to protect the filament from oxidation. Electric current is supplied to the filament by terminals or wires embedded in the glass. A bulb socket provides mechanical support and electrical connections.