Nobel Prize 1989: Winners

Recipients

1. Chemistry

   Sidney Altman, Thomas R. Cech

   Chemistry

   for their discovery of catalytic properties of RNA

2. Medicine

   J. Michael Bishop, Harold E. Varmus

   Biology

   for their discovery of the cellular origin of retroviral oncogenes

3. Physics

   Norman F. Ramsey

   Physics

   for the invention of the separated oscillatory fields method and its use in the hydrogen maser and other atomic clocks

4. Physics

   Hans G. Dehmelt, Wolfgang Paul

   Physics

   for the development of the ion trap technique