Qi vs Mbé

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In traditional Chinese culture, qi or ch'i ( CHEE simplified Chinese: 气; traditional Chinese: 氣; pinyin: qì qì) is believed to be a vital force forming part of any living entity. Qi translates as "air" and figuratively as "material energy", "life force", or "energy flow". Qi is the central underlying principle in Chinese traditional medicine and in Chinese martial arts.

The practice of cultivating and balancing qi is called qigong. Believers of qi describe it as a vital force, the flow of which must be unimpeded for health. Qi is a pseudoscientific, unverified concept, which has never been directly observed, and is unrelated to the concept of energy used in science (vital energy itself being an abandoned scientific notion).

Source: Wikipedia

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In computer science, group coded recording or group code recording (GCR) refers to several distinct but related encoding methods for representing data on magnetic media. The first, used in 6250 bpi magnetic tape since 1973, is an error-correcting code combined with a run-length limited (RLL) encoding scheme, belonging into the group of modulation codes.

The others are different mainframe hard disk as well as floppy disk encoding methods used in some microcomputers until the late 1980s. GCR is a modified form of a NRZI code, but necessarily with a higher transition density.

Source: Wikipedia