Generally the atmosphere is hazy; and this is caused by the falling of impalpably fine dust, which was found to have slightly injured the astronomical instruments
The method is derived from the recent progress in astronomical instruments
for the submillimeter (hundreds of GHz to THz) frequency band.
Dark matter, the mysterious substance that makes up roughly a quarter of the universe, is invisible to even the most sensitive astronomical instruments
because it does not emit or block light.
There's everything from one of Europe's largest Samurai collections (all the more spooky because of the low light), bicycles and penny farthings, model ships, astronomical instruments
, all kinds of musical instruments and, for children of all ages, a wide range of toys.
Having written extensively about astronomy and astronomical instruments
in Islamic civilization, King synthesizes both the religious and the scientific calculations of time in Islam from about 750 to about 1900 CE.
Jantar Mantar in Jaipur is a collection of architectural astronomical instruments
, built by Rajput Sawai Jai Singh during the 1700s.
It shall be made to a person, whether or not a member of the Association, who has shown marked ability in the making of Astronomical Instruments
Thompson identified a method of measuring the proton to electron mass ratio in the early universe several years ago, but it is only recently that astronomical instruments
became powerful enough to measure the effect.
Eight astronomical instruments
, each hundreds of years old, are poised like sentinels atop an observing platform.
In his efforts to advance astronomical instruments
during his time, he wrote a book "Risalah fi al-Astrulab".
Graham made a number of important astronomical instruments
Varied collection of items from the world of Arab medicine are still displayed in the rooms, including bottles of medicinal herbs, pharmaceutical accessories for measuring, grinding, distilling and others in addition to surgical instruments for dentistry and operations, talismans and other spiritual medicine accessories and also various astronomical instruments