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WuWA (German: Wohnungs- und Werkraumausstellung, 'Workplace and House Exhibition') was a building exhibition held in Breslau, Weimar Republic (today Wrocław, Poland) in 1929. Organized by the Silesian committee of the Deutsche Werkbund , close to the Scheitniger Park (currently Tramwajowa, Dembowskiego, Mikołaja Kopernika and Zielonego Dębu ...
A partially disassembled Curta calculator, showing the digit slides and the stepped drum behind them Curta Type I calculator, top view Curta Type I calculator, bottom view. The Curta is a hand-held mechanical calculator designed by Curt Herzstark. [1] It is known for its extremely compact design: a small cylinder that fits in the palm of the hand.
SipHash computes a 64-bit message authentication code from a variable-length message and 128-bit secret key. It was designed to be efficient even for short inputs, with performance comparable to non-cryptographic hash functions, such as CityHash; [4]: 496 [2] this can be used to prevent denial-of-service attacks against hash tables ("hash flooding"), [5] or to authenticate network packets.
It describes the basic components of digital logic, the devices and circuits used to build these components, and the principles of computer design and programming. This book was a revision of a report submitted to the Office of Naval Research , omitting references to cryptography; Mina Rees , then director of the ONR mathematical section ...
Visualization of a celestial sphere. In astronomy and navigation, the celestial sphere is an abstract sphere that has an arbitrarily large radius and is concentric to Earth.All objects in the sky can be conceived as being projected upon the inner surface of the celestial sphere, which may be centered on Earth or the observer.
Two waves differing by a quarter-phase shift for one axis Creating circular polarization using a quarter-wave plate and a polarizing filter. For a quarter-wave plate, the relationship between L, Δn, and λ 0 is chosen so that the phase shift between polarization components is Γ = π/2.
First attested in English in 1380, [citation needed] the word coffin derives from the Old French cofin, from Latin cophinus, which means basket, [5] which is the latinisation of the Greek κόφινος (kophinos), basket. [6]
The Kamunabi (神奈備, Kamunabi) is a government-affiliated organization of sorcerers with a mission established during the Seitei War (斉廷戦争, Seitei Sensō) to eliminate all threats to the nation of Japan as a whole like, notably different to civilian sorcerers who generally deal with more person-specific matters such as big corporations or the yakuza.