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假彩色的南极地区重力场照片

伽利略,多数情况下简称,是一个加速度单位,常用于重力场的测定。[1][2][3]

1伽等于1厘米每二次方秒(1 cm/s²)。

伽不是国际单位制的单位,但是在1978年,国际度量衡委员会决定伽可以与国际单位制单位并行使用,“直到国际度量衡委员会认为不再必要为止”。[2][4]

伽的命名是为了纪念第一个重力测量學者,意大利科学家伽利略·伽利莱

参考资料[编辑]

  1. ^ Barry N. Taylor, Guide for the Use of the International System of Units (SI), 1995, NIST Special Publication 811, Appendix B.
  2. ^ 2.0 2.1 BIPM SI brochure, 8th ed. 2006, Table 9: Non-SI units associated with the CGS and the CGS-Gaussian system of units 互联网档案馆存檔,存档日期2007-10-18..
  3. ^ Some sources, such as the University of North Carolina, the European Space Agency, and ConversionTables.com 互联网档案馆存檔,存档日期2009-05-19. state that the unit name is “galileo”. The NIST and the BIPM are here considered as more authoritative sources regarding the proper unit name.
  4. ^ NIST Guide to SI Units; Section 5, Units Outside the SI; Subsection 5.2: Units temporarily accepted for use with the SI.