He developed an ionosonde for measuring Earth's ionosphere, and a ranging tellurometer.
2.
It was mapped by the United States Geological Survey from tellurometer surveys and Navy air photos, 1960 62.
3.
Mapped by the United States Geological Survey ( USGS ) from tellurometer surveys and Navy air photos, 1959-63.
4.
Mapped by the United States Geological Survey ( USGS ) from tellurometer surveys and Navy air photos, 1960-62.
5.
The feature was the terminal tellurometer station of the 1969 ANARE ( Australian National Antarctic Research Expeditions ) Prince Charles Mountains survey.
6.
Beadell put considerable effort into rediscovering Vokes Hill while surveying the track, as a new device called a Tellurometer was being introduced.
7.
Mapped by the U . S . Geological Survey ( USGS ) from tellurometer surveys and Navy air photos, 1960-62.
8.
He also in vented the tellurometer, which could measure up to a distance of 80 km; it was used in land surveying.
9.
In 1967, ANARE ( Australian National Antarctic Research Expeditions ) surveyor J . Manning selected a route through the crevasses and established a beaconed tellurometer station on it.
10.
At the time, IMC was in the process of industrialising a unique South African invention, the Tellurometer, the first successful microwave electronic distance measurement equipment ( EDM ).
मोबाइल