![](https://coimages.sciencemuseumgroup.org.uk/18/788/large_thumbnail_l2000_4128__0002_.jpg)
Magnetic field detectors from the first commercial magnetocephalography scanner (MEG).
1990s
1990s
1989
2000-100 BCE
1990
1989
1989
1990s
1990-96
1989
1990
1989
1990
4000-2001 BCE
1990
1990
circa 1989
circa 1990
circa 1990
circa 1990
1989
1990s
30 CE
30 CE
2686-2613 BCE
1990
1989
1990
circa 1990s
circa 1989
1989
1989
1990
1989
2000-500
1990s
1989
2000-500
2000-1000
1970 and post 1989
1989
2500 BCE
circa 1990
2000-500
2000-800
1989
1989
1989
1989
1989
1990-95