TY - JOUR A1 - Smallwood, J. R. T1 - The attraction of the pyramids: virtual realization of Hutton's suggestion to improve Maskelyne's 1774 Earth density estimate JO - Hist. Geo Space. Sci. J1 - HGSS VL - 9 IS - 1 SP - 1 EP - 7 Y1 - 2018/01/09 PB - Copernicus Publications SN - 2190-5029 UR - https://hgss.copernicus.org/articles/9/1/2018/ L1 - https://hgss.copernicus.org/articles/9/1/2018/hgss-9-1-2018.pdf DO - 10.5194/hgss-9-1-2018 ER -