I've been traveling Italy for the last few weeks and never imagined that I'd be learning AV history alongside viewing priceless art! But, when you love what you do, you can't help noticing these things!
Did you know that Leonardo da Vinci invented the first projector??
Leonardo was a brilliant inventor and experimented with multiple mechanisms, many of which we still use today! It just so happens one of his inventions was the idea of the projector!
Leonardo's invention related to the propagation of light through mirrors and a lens which proved useful over time and led into the film industry.
The Projector allowed you to create a "lun ume bello et grande" or "A big beautiful light" using only a single candle.
When lit inside the box, the candle's luminous flux is strengthened when reflected in the rear mirror. When inclined, the latter reflects the light produced into the concave lens, projecting a quadrupled beam of light.
Well, now you know! So don't you forget it!
Model of Leonardo da Vinci's projector invention