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Abbe number. In optics and lens design, the Abbe number, also known as the V-number or constringence of a transparent material, is an approximate measure of the material's dispersion (change of refractive index versus wavelength), with high values of V indicating low dispersion. It is named after Ernst Abbe (1840–1905), the German physicist ...
Abbe condensers are difficult to use for magnifications of above 400X, as the aplanatic cone is only representative of a numerical aperture (NA) of 0.6. This condenser is composed of two lenses, a plano-convex lens somewhat larger than a hemisphere and a large bi-convex lens serving as a collecting lens to the first.
Verses from the Quran, a primary source of the law of Saudi Arabia. The primary source of law in Saudi Arabia is the Islamic Sharia.Sharia is derived from the Qur'an and the traditions of Muhammad contained in the Sunnah; [3] ijma, or scholarly consensus on the meaning of the Qur'an and the Sunnah developed after Muhammad's death; and qiyas, or analogical reasoning applied to the principles of ...
Ameera al-Taweel. Ameera bint Aidan bin Nayef al-Taweel al-Otaibi ( Arabic: أميرة بنت عيدان بن نايف الطويل العصيمي العتيبي; born 6 November 1983) is a Saudi Arabian philanthropist and ex-princess. [1] Born into the Tribe of Otaibah, she became affiliated with the House of Saud after marrying al-Waleed bin ...
This is a list of airports in Saudi Arabia, grouped by type and sorted by location. Saudi Arabia, officially the Kingdom of Saudi Arabia, is the largest Arab country of the Middle East . It is bordered by Jordan and Iraq on the north and northeast, Kuwait , Qatar , Bahrain and the United Arab Emirates on the east, Oman on the southeast, and ...
13 June 1982 (death by natural causes) Son of King Abdulaziz and Al Jawhara bint Musaed bin Jiluwi Al Saud. Saud. Fahd of Saudi Arabia. فهد بن عبد العزيز آل سعود. 16 March 1920 – 1 August 2005 (aged 85) 13 June 1982 (aged 62) 1 August 2005 (death by natural causes) Son of King Abdulaziz and Hussa bint Ahmed Al Sudairi.
In optics, the Abbe sine condition is a condition that must be fulfilled by a lens or other optical system in order for it to produce sharp images of off-axis as well as on-axis objects. It was formulated by Ernst Abbe in the context of microscopes. [1] The Abbe sine condition says that. the sine of the object-space angle should be proportional ...
Updated July 18, 2024 at 2:09 PM. KPNX. The Arizona father who was arrested last week and charged with murder after his 2-year-old daughter died in a hot car had been distracted by video games and ...