Magnetic field detectors from the first commercial magnetocephalography scanner (MEG).
1990s
1990s
1990-1991
1989
2000-100 BCE
1990
1989
1989
2000-100
1990-1991
1990s
1990-96
1989
1990
1989
1990
4000-2001 BCE
1990
1990s
1990
circa 1989
1991
1991
circa 1990
circa 1990
circa 1990
1989
1990s
30 CE
30 CE
2686-2613 BCE
1990
1991
1991
1989
1990
circa 1990s
1990-1991
1990-1991
1990-1991
circa 1989
1989
1989
1991
1990
1989
1991
2000-500
1990s
1991
1989