Caption

Charcoal rheostate by Thomas Alva Edison. This instrument served as a precisely adjustable electrical resistance. It exploited the physical principle that the electrical resistance of coal changes under mechanical pressure, illustration, reproduction from a 19th-century original. Authentic, file restored for optimal use, exact date of submission unknown, historical

Date

Jul 20, 2026

Credit line

Photo12/ImageBROKER/Sunny Celeste

Reference

BRK26H52_017

Model release

No

Property release

No

License type

Royalty free

Available size

145.6Mb (48.5Mb) / 29.1in x 19.4in / 8736 x 5824 (300dpi)

Keywords

no people black old-fashioned obsolete date history instrument drawing coal resistance technology accurate change pressure environmental pollution ecocide environment classic illustration depiction electric antiquity historic technical restored contemporary nostalgia energy source drawn retro adjustable file authentic woodcut restoration physical fossil energy source appliance former nostalgic mechanical vintage sketch environmental damage printing method environmental issue polluting Thomas Alva Edison replication 19th century Historic illustration Wood engraving deserted oldfashioned outdated tool opposition precise pollution environmental destruction classical representation electrical ancient times historical Retro style ecological damage real xylograph reconstruction fossil fuel equipment harmful to the environment nineteenth century Historical illustration nobody old fashioned antiquated exact pollution of the environment realistic woodprint device Environmentally harmful Thomas Edison reproduction 1900s outmoded out of date environmental contamination genuine implement replica copy dates instruments drawings coals technologies changes pressures ecocides illustrations depictions Altertum tech energy sources environmental pollutions changing files woodcuts restorations fossil energy sources appliances formerly environmental damages printing methods environmental issues 19th-century Historic illustrations classically historically reconstructions fossil fuels Historical illustrations replicas no one on black depicting historical image history image history images restoration work vintage-styled representing