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In number theory , a full reptend prime or long prime in base b is a prime number p such that the formula (where p does not divide b ) gives a cyclic number . Therefore the digital expansion of in base b repeats the digits of the corresponding cyclic number infinitely. Base 10 may be assumed if no base is specified.

## Number theory

Number theory (or arithmetic [ note 1 ] ) is a branch of pure mathematics devoted primarily to the study of the integers . Number theorists study prime numbers as well as the properties of objects made out of integers (e.g., rational numbers ) or defined as generalizations of the integers (e.g., algebraic integers ). Integers can be considered either in themselves or as solutions to equations ( Diophantine geometry ).

## Ácido cianhídrico

El cianuro de hidrógeno [H-C≡N(g)] o ácido cianhídrico [H-C≡N(ac)], ácido prúsico , metanonitrilo o formonitrilo es un compuesto químico cuya fórmula es: H C N . La disolución de cianuro de hidrógeno en agua es llamada ácido cianhídrico. El cianuro de hidrógeno puro es un líquido incoloro, muy venenoso y altamente volátil, que hierve a 26 °C. Tiene un ligero olor a almendras amargas, que algunas personas no pueden detectar debido a un rasgo genético .
A cermet is a composite material composed of ceramic (cer) and metallic (met) materials. A cermet is ideally designed to have the optimal properties of both a ceramic , such as high temperature resistance and hardness, and those of a metal, such as the ability to undergo plastic deformation . The metal is used as a binder for an oxide , boride , or carbide .

## Robotics

Robotics is the branch of technology that deals with the design, construction, operation, and application of robots , [ 1 ] as well as computer systems for their control, sensory feedback, and information processing. These technologies deal with automated machines that can take the place of humans in dangerous environments or manufacturing processes, or resemble humans in appearance, behavior, and/or cognition. Many of today's robots are inspired by nature contributing to the field of bio-inspired robotics . The concept of creating machines that can operate autonomously dates back to classical times , but research into the functionality and potential uses of robots did not grow substantially until the 20th century. [ 2 ] Throughout history, robotics has been often seen to mimic human behavior, and often manage tasks in a similar fashion.
Neue Materialien wie Fullerene (d) oder Carbon-Nanotubes (h) sind Nanotechnologie und werden schon jetzt in vielen Gebieten eingesetzt. Schon heute liegt die Größenordnung der Transistoren (siehe Bild) eines handelsüblichen Mikroprozessors im Bereich der Nanotechnologie. Es werden 32 nm breite Strukturen erreicht.

## Nanotechnologie

Bionics (also known as biomimicry , biomimetics , bio-inspiration , biognosis , and close to bionical creativity engineering ) is the application of biological methods and systems found in nature to the study and design of engineering systems and modern technology . [ citation needed ] The word bionic was coined by Jack E. Steele in 1958, possibly originating from the technical term bion (pronounced bee-on ) (from Ancient Greek : βίος ), meaning 'unit of life ' and the suffix -ic , meaning 'like' or 'in the manner of', hence 'like life'. Some dictionaries, however, explain the word as being formed as a portmanteau from bio logy + electro nics . It was popularized by the 1970s television series The Six Million Dollar Man and The Bionic Woman , which were based upon the novel Cyborg by Martin Caidin , which was influenced by Steele's work, and feature humans given superhuman powers by electromechanical implants.

## Bangkok

Bangkok is the capital and the most populous city of Thailand . It is known in Thai as Krung Thep Maha Nakhon ( กรุงเทพมหานคร , pronounced [krūŋ tʰêːp máhǎː nákʰɔ̄ːn] ( listen ) ) or simply Krung Thep . The city occupies 1,568.7 square kilometres (605.7 sq mi) in the Chao Phraya River delta in Central Thailand, and has a population of over eight million, or 12.6 percent of the country's population.

## Fermat number

In mathematics , a Fermat number , named after Pierre de Fermat who first studied them, is a positive integer of the form where n is a nonnegative integer. The first few Fermat numbers are:

## Wetware (brain)

Wetware is a term drawn from the computer-related idea of hardware or software , but applied to biological life forms. Here the prefix "wet" is a reference to the water found in living creatures. Wetware is used to describe the elements equivalent to hardware and software found in a person, namely the central nervous system (CNS) and the human mind .