Magnetic field detectors from the first commercial magnetocephalography scanner (MEG).
1990s
1990s
1989
1987
1986
1987
1986
2000-100 BCE
1990
1988
1990-1991
1989
1986
2000-100
1990-1991
1986
1989
1992
1990s
1990-96
1988
1989
1988
1988
1990
1986
1987
1992
1988
1992
1989
4000-2001 BCE
1988
1987
1988-1992
1990
1990
1839 (original); circa 1988 (replica)
1992
1989
1986
1992
1991
1991
1992
1991
1986
1986
1986
1986
1990