FFF system
Tsarin furlong – firkin –makonni biyu ( FFF ) tsarin barkwanci ne na raka'a dangane da ma'aunin da ba a saba da shi ba. Tsayin tsayin tsarin shine furlong, naúrar taro shine yawan firkin ruwa, kuma lokacin shine makwanni biyu. Kamar tsarin SI ko mita - kilogram - na biyu, akwai sassan da aka samo don gudu ƙarar, taro da nauyi, da sauransu. Wani lokaci ana kiranta tsarin FFFF inda na 'F' na huɗu shine digiri Fahrenheit don zafin jiki.

Duk da yake ba a amfani da tsarin FFF a aikace amma an yi amfani da shi azaman misali a cikin tattaunawar cancantar dangi na tsarin raka'a daban -daban. Wasu rukunin FFF, musamman microfortnight, an yi amfani da su cikin raha a kimiyyar kwamfuta. Bayan samun ma'anar "kowane rukunin da ba a sani ba", da aka samu a cikin makwanni biyu shima ya yi hidima akai -akai a cikin misalai na juzu'in juzu'i da bincike mai girma.

Ƙungiyoyin tushe da ma'anoni

Sanannen yawa da kuma abubuwan da aka samo

Microfortnight da sauran prefixes 
Daya microfortnight ne daidai 1,2096 seconds.  Wannan kuma ya zama abin dariya a kimiyyar kwamfuta saboda a cikin tsarin aiki na VMS, canjin TIMEPROMPTWAIT, wanda ke riƙe da lokacin tsarin zai jira mai aiki don saita madaidaicin kwanan wata da lokaci a taya idan ya fahimci cewa ƙimar yanzu ba ta da inganci, shine saita a cikin microfortnights. Wannan saboda kwamfutar tana amfani da madauki maimakon agogon ciki, wanda ba a kunna shi ba tukuna don gudanar da saita lokaci.  Takardun sun lura cewa "[t] lokaci na micro-fortnights an kimanta shi azaman seconds a aiwatarwa". 

Fayil ɗin Jargon ya ba da rahoton cewa an yi amfani da millifortnight (kusan mintuna 20) da nanofortnight.

Furlongs a kowane mako biyu 
Tsawon gudu ɗaya a kowane mako biyu shine saurin wanda ba za a iya gane shi da ido ba. Yana juyawa zuwa:

 1,663 ×   m / S, (watau 0,1663 mm/s),
 kusan 1 cm / min (zuwa cikin kashi 1 cikin 400), 
 5.987 ×   km/h,
 wajen  a/min,
 3,720 ×   mph.

Gudun haske 
Saurin haske shine 1.8026× 10 12 furlongs kowane mako biyu (1.8026 megafurlongs a kowane microfortnight) Ta hanyar 3.249 daidai, firkin 1 yayi daidai da 3.249 76 × 10 24 firkin.

Wasu 
A cikin tsarin FFF, ana ba da rahoton daidaiton zafin zafi azaman BTU a kowace ƙafa-fathom kowane digiri Fahrenheit kowane mako biyu.  Rawanin zafi yana da raka'a na BTU a kowane mako biyu a kowane tsayi a kowane digiri Fahrenheit.

Kamar filayen da ake yawan samu a kowane sati biyu,  a kowane sati biyu tare da ma'anar "duk wani ɓoyayyen yanki".

Duba kuma 

 Jerin abubuwan auna ma'auni
 Jerin raka'a na ban dariya na aunawa

Bayanan ƙasa

Manazarta