Question

what technological breakthrough made it possible to replace phase drawings with photographs in early motion devices?
the electric light bulb
the daguerreotype and talbots negative process
the battery - powered projector
the chronophotographic gun

Explanation:

The daguerreotype (a direct positive process) and Talbot's negative - positive process were key in the development of photography. These processes allowed for the creation of more accurate and detailed images compared to phase drawings. The electric light bulb was more about illumination in general settings. The battery - powered projector was for projecting images (not for creating the photographic images to replace drawings). The chronophotographic gun was more about sequential photography for studying motion but the fundamental breakthrough for replacing drawings with photographs was the daguerreotype and Talbot's process.

Answer:

The daguerreotype and Talbot's negative process