124 STASHED IDEAS
The optical printer was an important innovation in special effects photography. It was first used to make copies of films for distribution, but Linwood G. Dunn refined the design and showed that it could be used to combine images to create new illusions.
Colour enabled matte techniques such as bluescreen and the sodium vapour process. The 1939 Wizard of Oz is considered the first colour film.
During this time, music was practised by kings and paupers alike. The sound of this music becomes increasingly familiar due to the development of musical notation.
The written music that survived makes it possible to assemble an image of a vibrant culture. Throughout this period, music adopted more elaborate structures and devices that produced works of immense beauty. Important musical forms of this era include the motet, the sacred Mass, and the madrigal.
According to the psychologist, Ethan Kross, one of the biggest contributors to our happiness is the voice inside our heads. Our inner voice analyzes every situation we're in, reflects on the past and the possible future, and plays a part in telling us who we are.
Our own voices can either bring us down and ruminate on negative emotions or otherwise.
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