heliography's Usage Examples:

In pre-radio times heliography was often the only means of communication that could span ranges of as.

contact-exposed copy of an engraving, was made in 1822 using the bitumen-based "heliography" process developed by Nicéphore Niépce.

Niépce developed heliography, a technique he used to create the world's oldest surviving product of.

telescope, a telescope especially adapted for viewing the surface of the sun heliography, the photographic process used to make the earliest known permanent photograph.

second mirror for communicating with the instrument station through heliography, a signalling system using impulsed reflecting surfaces.

by Johann Heinrich Schulze in 1724, and Joseph Niépce's bitumen-based heliography in 1822 contributed to development of the daguerreotype.