✦ LIBER ✦
A new theodolite for following fast moving objects especially for making pilot balloon observations of greater accuracy
✍ Scribed by L. W. Pollak; D. Brunt
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 731 KB
- Volume
- 65
- Category
- Article
- ISSN
- 0035-9009
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
A new pilot balloon theodolite is described the essential feature of which is that the reading‐ arrangements (verniers) remain stationary relatively to the vertical and horizontal scales from one reading‐ until the next, so that the observer is able to follow the balloon continuously.