Caption

Illustration shows the phonomotor, also known as a vocal machine, which Thomas Edison invented in 1878 to demonstrate the mechanical power of sound waves. The device converts sound energy from the voice into a rotational movement that drives a flywheel, illustration, reproduction from a 19th-century original. Authentic, file restored for optimal use, exact date of submission unknown, historical

Date

Jun 08, 2026

Credit line

Photo12/ImageBROKER/Sunny Celeste

Reference

BRK26H19_395

Model release

No

Property release

No

License type

Royalty free

Available size

71.0Mb (23.7Mb) / 23.8in x 11.6in / 7128 x 3480 (300dpi)

Keywords

deserted black date history drawing freedom accurate strength Demonstration demonstrator protest classic illustration depiction flywheel antiquity historic demonstrate powerful energy restored contemporary drawn file authentic freedom of opinion woodcut restoration appliance former mechanical vintage voice sound sketch printing method Thomas Alva Edison replication 19th century Historic illustration Wood engraving Sound wave sound energy no one precise power protest march protestor classical representation ancient times historical rich real freedom of expression xylograph reconstruction equipment nineteenth century Historical illustration No People exact Demo realistic woodprint device Thomas Edison reproduction 1900s nobody Protest demonstration genuine implement replica uninhabited copy empty dates drawings Demonstrations demonstrators protests illustrations depictions flywheels Altertum protesting demonstrating energies files woodcuts restorations appliances formerly voices printing methods 19th-century Historic illustrations protest marchs Protestors classically historically reconstructions Historical illustrations Demos Protest demonstrations replicas on black rally depicting historical image history image history images demonstrates restoration work vintage-styled protester representing