Kitten Vintage Mackay
Sustainable Style with a Story
Pages
(Move to ...)
Instagram
Vintage Patterns
DIY
Vintage Ads
▼
Showing posts with label
solar
.
Show all posts
Showing posts with label
solar
.
Show all posts
Monday, 4 February 2013
The Heliograph– vintage solar communication
›
Back to vintage technology today. Before the telegraph there was the Heliograph, an instrument that reflected the sun's light to an o...
›
Home
View web version
