Charges repel one another and will get as far apart as they can. Since the shell is a conductor, nothing is stopping them from moving to the ... ... <看更多>

... file (which is a volume from a CTScan), I reckon an alternative could be exporting just the outer surface, instead of the volume itself. ... <看更多>

The inner and outer surface temperatures of a glass window 5 mm thick are 15C and 5C. What is the heat loss through a 1 m x 3 m window? ... <看更多>