January almost over! And the sun is all over the countryside. Some birds tend to believe it's spring! And tomorrow we have a family party, to celebrate the end of the examperiod for grandchildren.... and their parents! Found some interesting phenomena in application of PTC Thermistors , (but who is interested in private research on thermistors!). It seems that the increase in Mn in the basematerial will have an immediate effect on the Curie-or Nat-temperature of the microsensors made .