The current heat that has built up in the reactor. Heat is necessary to produce steam to run turbines. The pace of heat generation depends on the current power level of the reactor. When the heat reaches above the red marker, emergency cooling will try to reduce excess heat in the reactor. If the heat level goes beyond the heat bar maximum, the reactor will critically overheat, damaging the reactor and releasing radiation into the area.
The most sophisticated manufacturing processes where a thin monocrystalline wafer is slowly transformed into a matrix of microchips. Chips are built from many layers where each layer has to be placed with nanometer precision. This is performed in a special chamber that employs ultraviolet technology - substances reacting with light to form the layers. Microchips typically go through lot of stages including washing and coating in between. It is good to start small and then expand. Small setups can be connected in form of a loop with a sorter.
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