Possibility of detection of the long-period core modes is discussed by using the long-term gravity observations recorded with 13 superconducting gravimeters (SGs) in a worldwide network of the Global Geodynamics Projects.

"The College Student Research Program" Is Commensurate with the Goals for the Cultivation of Creative People;

This paper describes the major features and the development trend of big science,analyzes the actualities of the big science programs that China participates in,and also introduces the policies of some other countries about big science research,finally gives some thoughts on the international cooperation when China participates in the big science research programs.