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Sodium azide is an ionic solid.Two crystalline forms are known, rhombohedral and hexagonal. [1] [6] Both adopt layered structures.The azide anion is very similar in each form, being centrosymmetric with N–N distances of 1.18 Å.
This is a list of NGC objects 1–1000 from the New General Catalogue (NGC). The astronomical catalogue is composed mainly of star clusters, nebulae, and galaxies.Other objects in the catalogue can be found in the other subpages of the list of NGC objects.
All versions have an enclosed cabin with two-side-by-side seats and folding wings. The Eurofox is sold in Europe as both factory complete and kit form, but is only available as a factory built aircraft in the U.S. [2] In 2018 a group of secondary school pupils in Kinross, Fife completed building a kit as part of a science project. [3] Aerotrek ...
[3] [4] It was formed in 1935 as a partnership between two major American glassworks, Corning Glass Works and Owens-Illinois. The company employs approximately 19,000 people around the world. [5] [6] Owens Corning has been a Fortune 500 company every year since the list was created in 1955.
A science project is an educational activity for students involving experiments or construction of models in one of the science disciplines. Students may present their science project at a science fair, so they may also call it a science fair project. Science projects may be classified into four main types.
Nippon Sheet Glass Co., Ltd. (日本板硝子株式会社, Nihon Ita-Garasu Kabushiki-gaisha) is a Japanese glass manufacturing company. In 2006, it acquired Pilkington of the United Kingdom . This makes NSG/Pilkington one of the four largest glass companies in the world alongside another Japanese company Asahi Glass , Saint-Gobain , and ...
[2] [3] The program is the culmination of the Large Surface Combatant (LSC) initiative that followed the cancellation of CG(X) and curtailing of the procurement of the Zumwalt-class destroyers. The ships will become the principal large surface combatants of the U.S. Navy. Compared to their predecessors, they will incorporate more powerful ...
The Naval Information Warfare Systems Command Program Executive Offices (PEOs) are organizations responsible for the prototyping, procurement, and fielding of C4ISR (Command, Control, Communications, Computers, Intelligence, Surveillance and Reconnaissance), business information technology and space systems.