Women in ancient Sparta their wealth. He attributed the state's precipitous fall during his lifetime, from being the master of Greece to a second-rate power in less than 50 years, to the fact that Sparta had become a gynocracy whose women were intemperate and loved luxury. All Spartan women, not just the richest, would have taken advantage of helot labour to perform the domestic tasks that elsewhere in Greece would have fallen to free women. Activities such as weaving which were considered women's work elsewhere in Greece were not considered fit for free women in Sparta. Therefore, women were more preoccupied with governance, agriculture,
SERF their magnetic precession frequency so that the average spin interacts with the field and is not destroyed by decoherence. A SERF magnetometer achieves very high magnetic field sensitivity by monitoring a high density vapor of alkali metal atoms precessing in a near-zero magnetic field. The sensitivity of SERF magnetometers improves upon traditional atomic magnetometers by eliminating the dominant cause of atomic spin decoherence caused by spin-exchange collisions among the alkali metal atoms. SERF magnetometers are among the most sensitive magnetic field sensors and in some cases exceed the performance of SQUID detectors of equivalent size. A small 1 cm volume