Strange quark
The first strange particle (a particle containing a strange quark) was discovered in 1947 (kaons), but the existence of the strange quark itself (and that of the up and down quarks) was only postulated in 1964 by Murray Gell-Mann and George Zweig to explain the Eightfold Way classification scheme of hadrons. The first evidence for the existence of quarks came in 1968, in deep inelastic scattering experiments at the Stanford Linear Accelerator Center. These experiments confirmed the existence of up and down quarks, and by extension, strange quarks, as they were required to explain the Eightfold Way.
Stephen Quake
Stephen Ronald Quake (born 1969) is an American scientist, inventor and entrepreneur. He earned his B.S. in Physics and M.S. in Mathematics from Stanford in 1991 and his D.Phil. in Physics from Oxford University in 1994 as a Marshall Scholar. His thesis research was in statistical mechanics and the effects of knots on polymers. He did his postdoctoral work at Stanford in single molecule biophysics with Steven Chu. Quake joined the faculty of the California Institute of Technology at the age of 26, where he rose through the ranks and was ultimately appointed the Thomas and Doris Everhart Professor of Applied Physics and Physics. He moved back to Stanford University in 2005 to help launch a new department in Bioengineering, where he is now the Lee Otterson Professor of Bioengineering and Applied Physics, and an Investigator of the Howard Hughes Medical Institute.