D-particle quantum mechanics in a type I' background is reviewed. It is also
discussed how a string is created when a D-particle is taken through a
D8-brane. The process is found to be dual to the creation of a D3-brane when a
NS5 and D5 brane are passed through each other.Comment: 6 pages, 2 figures. Uses espcrc2.sty. Talk given at STRINGS'9