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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.
  3. ^ Some sources, such as the University of North Carolina, the European Space Agency, and ConversionTables.com 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.