2DARK天文志

Abstract: We review the current status of dimensions, as the result of a long and
controversial history that includes input from philosophy and physics. Our
conclusion is that they are subjective but essential concepts which provide a
kind of book-keeping device, their number increasing as required by advances in

• 简介：

南京大学－紫金山天文台粒子－核宇宙学联合研究中心（JCPNPC）成立于2006年9月。