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Contents
Chapter 1Base Units Chapter 2Famispanar Everyday Units Chapter 3Weird and Wonderfdiv Units Chapter 4Historical Units Chapter 5Japanese Units
Index Column

Unit system

A series of units is called a units system. The "SI units system" is widely used all over the world as an international units system, but there are also "Imperial system" and "Shakkanho" as units systems peculiar to each country and region.

What is an SI unit?
SI units system
International system of Units. This internationally regulated system of units succeeded the metric system and is used widely worldwide.
Imperial units
A system of units used mainly in the US.
Base units are “yard” for length and “pound” for mass.
Shaku-kan system
A system of units used widely in eastern Asia.
Base units are “shaku” for length and “kan” for mass.

Bibliography

  • Zukai Yoku Wakaru Tani no Jiten [Illustrated Encyclopedia of Well-Known Units] by Naohiko Hoshida / KADOKAWA-Media Factory
  • Zukai Nyumon Yoku Wakaru Saishin Tani no Kihon to Shikumi [Illustrated Introduction to Basis and Systems of the Latest Units] by Yukio Ito, Hitomi Samukawa / Shuwa System
  • Maruzen: Tani no Jiten [Maruzen: Encyclopedia of Units] edited by Takao Nimura / Maruzen Co., Ltd.
  • Tani to Kigo [Units and Symbols] by Kei Shiratori / Gakken Kyoiku Shuppan
  • Tani no ima / mukashi [Past and Present Units] by Kesakatsu Koizumi / Japanese Standards Association
  • Zoku Tani no ima / mukashi [Past and Present Units (Continued)] by Kesakatsu Koizumi / Japanese Standards Association
  • Kyo kara monoshiri Shiriizu Tokoton Yasashii Tani no Hon [Know your Stuff Series: Comprehensive and Easy Book about Units] by Masamitsu Yamakawa / Nikkan Kogyo Shimbun, Ltd.
  • Zatsugaku San-pun Bijuaru Zukai Shiriizu Tani [Miscellaneous 3-Minute Study Visual and Illustrated Series about Units] edited by Eiichiro Ito / PHP Kenkyusho
  • Sekai de Ichiban Omoshiroi!” ‘Tani’ no Hayawakari Benricho [Most Interesting in the World! ‘Easy-to-understand Guide to Units’] edited by Homelife Shuzai-han / Seishun Publishing Co., Ltd.
  • Me de Miru Tani no Zukan [Illustrated Book of Units] edited by Kazuhiko Maruyama / Tokyo Shoseki Co., Ltd.
  • Nippon no Saizu Karada de Hakaru Shakkan-ho [Japanese Sizes: Measuring with parts of the body with the Shaku-kan System] by Eisuke Ishikawa / Tankosha Publishing
  • Zusetu Maya Moji Jiten [Illustrated Encyclopedia of Mayan Script] by Maria Longhena / Sogensha Inc.
  • Kodai Indo no Bunka to Bunmei [Culture and Civilization of Ancient India] by K.C. Chakravarti / Toho Shuppan
  • Kagefukaki Tani [Valley of the Shadow] by Peter Tremayne / Tokyo Sogensha Co., Ltd.

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