The sextant and its applications.pdf
The sextant and its applications.
This book for those who may be inclined to assist in introducing an improved system of practice with the Sextant, the necessity for which is well known to all who have been in the habit of employing the instrument for nice purposes,
whether on land or at sea, and who are therefore aware that this, like other instruments, is subject to certain imperfections, as well in the parts which the operator has the means of adjusting as in those over which he has no such control.
Автор: W.H. Simms
#астрономия
This book for those who may be inclined to assist in introducing an improved system of practice with the Sextant, the necessity for which is well known to all who have been in the habit of employing the instrument for nice purposes,
whether on land or at sea, and who are therefore aware that this, like other instruments, is subject to certain imperfections, as well in the parts which the operator has the means of adjusting as in those over which he has no such control.
Автор: W.H. Simms
#астрономия