masse négative

[1993] Negative mass can be positively amusing ; Richard H. Price ; American Journal of Physics 61 (mar 1993) p. 216 [lien]
[2014] [Notes and Discussions] The concept of negative mass and its application to Helium-balloon-type dynamics ; C. J. Dias ; L. N. Gonçalves ; American Journal of Physics 82 (oct 2014) p. 997 [lien]