How does it work? – Cinema projector
This animation demonstrates the design and operation of a traditional cinema projector.
film projector, cinema, movie, motion picture, film, film screening, projection box, film reel, optics, frame, film drive mechanism, digital, analogue, stereo soundtrack, media, technology
Cinemas were built in large numbers in big cities of the US in the 1910s.
The first commercially successful technique of photography was invented by the French Louis Daguerre.
Several analogous types of eyes have developed independently through convergent evolution.
The invention of the ballpoint pen made writing a lot easier.
This animation demonstrates the structure and operation of digital cameras.
This animation demonstrates the structure and operation of electron microscopes.
This animation demonstrates the structure and operation of different types of optical disc drives.
A white, crystalline compound which breaks down when exposed to light.
The curvature of the lens of the eye changes when we look at a distant or at a near object, to ensure a sharp image.
Lighthouses are used as an aid to navigation in coastal waters.
This animation explains transparency and opacity, the principle of radiography, and the light-absorbing properties of materials.