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Shadowgraph is an optical method that reveals non-uniformities in transparent media like air, water, or glass. It is related to, but simpler than, the schlieren and schlieren photography methods that perform a similar function.
After sunsetting is announced, usually very few changes are made to the hardware or software in question, as such work would be counterproductive, when its termination is soon to follow. In some cases, however, individual features of an application, server, or service may be phased out at different times, leading up to the eventual full shutdown.
A selection of instruments and artifacts from the collection comprise the exhibition Time, Life, & Matter: Science in Cambridge. This permanent display can be found in the Putnam Gallery on the first floor of the Harvard Science Center, which is free and open to the public during regularly scheduled hours, Sunday through Friday. In addition ...
Burt's solar compass or astronomical compass/sun compass is a surveying instrument that makes use of the Sun's direction instead of magnetism. William Austin Burt invented his solar compass in 1835. The solar compass works on the principle that the direction to the Sun at a specified time can be calculated if the position of the observer on the ...
An astronomical instrument is a device for observing, measuring or recording astronomical data. They are used in the scientific field of astronomy , a natural science that studies celestial objects and the phenomena that occur in the cosmos, with the object of explaining their origin and evolution over time.
The other instrument is a Marvin sunshine recorder. Older recorders required a human observer to interpret the results; recorded results might differ among observers. Modern sunshine recorders use electronics and computers for precise data that do not depend on a human interpreter. Newer recorders can also measure the global and diffuse radiation.
Application retirement, also called application decommissioning [1] and application sunsetting, is the practice of shutting down redundant or obsolete business applications while retaining access to the historical data.
The first astronomical texts that were translated into Arabic were of Indian [2] and Persian origin. [3] The most notable was Zij al-Sindhind, a zij produced by Muḥammad ibn Ibrāhīm al-Fazārī and Yaʿqūb ibn Ṭāriq, who translated an 8th-century Indian astronomical work after 770, with the assistance of Indian astronomers who were at the court of caliph Al-Mansur.