bloch line density
21Manhattan Project — This article is about the atomic bomb project. For other uses, see Manhattan Project (disambiguation). Manhattan District The Manhattan Project created the first nuclear bombs. The Trinity test …
22Character mask — Part of a series on Marxism …
23Massachusetts — This article is about the U.S. state. For other uses, see Massachusetts (disambiguation). Commonwealth of Massachusetts …
24Mailsi — میلسی   City   …
25Kansas City, Missouri — For other cities with a similar name, see Kansas City (disambiguation). Kansas City   City   From top left: the Liberty Me …
26ancient Rome — ▪ ancient state, Europe, Africa, and Asia Introduction the state centred on the city of Rome. This article discusses the period from the founding of the city and the regal period, which began in 753 BC, through the events leading to the… …
27NEW YORK CITY — NEW YORK CITY, foremost city of the Western Hemisphere and largest urban Jewish community in history; pop. 7,771,730 (1970), est. Jewish pop. 1,836,000 (1968); metropolitan area 11,448,480 (1970), metropolitan area Jewish (1968), 2,381,000… …
28Nuclear magnetic resonance — This article is about the physical phenomenon. For its use as a method in spectroscopy, see Nuclear magnetic resonance spectroscopy. NMR redirects here. For other uses, see NMR (disambiguation). First 1 GHz NMR Spectrometer (1000 MHz,… …
29Rochester, New York — This article is about the city of Rochester in Monroe County. For the town in Ulster County, see Rochester, Ulster County, New York. For the metropolitan area, see Rochester, New York metropolitan area. Rochester   City   …
30Photonic crystal — The opal in this bracelet contains a natural periodic microstructure responsible for its iridescent color. It is essentially a natural photonic crystal, although it does not have a complete photonic band gap. Photonic crystals are periodic… …
