Search Results for: Apparatus use x-ray
not coined until the s. henry christopher mance ( – ), of the british government persian gulf telegraph department, developed the first widely accepted heliograph about [ ] [ ] [ ] while stationed at karachi , in the bombay presidency in british india . mance was familiar with heliotropes by their use
miles in length. [ ] the network of communication begun by general miles in , and continued by lieutenant w. a. glassford, was perfected in at ranges of , , , and miles over a rugged and broken country, which was the stronghold of the apache and other hostile indian tribes. [ ] by , heliographs in use...
https://en.wikipedia.org/wiki/Heliograph