The classification, period, and amplitude of the contact binary system Rxj0219 were determined using the technique of differential time-series CCD photometry. The variable star was found to be of type W Ursae Majoris, with a period of approximately 3 hours and an amplitude of 2 magnitudes. A recurrent peak in the amplitude just before maximum may indicate a hot spot on the accretion disk between the two stars. This research was made possible in part by the support of Dr. Steve Howell of the University of Wyoming, who generously supplied the data.
Superconductivity is used in ways like transmitting more information on a smaller wire.
The only problems are with the fragile structure of ceramic materials over long distances. Increased knowledge can also lead to more powerful electro magnets. Knowledge of the difference in resistance in some certain ceramic materials at certain temperatures have led to some recent developments. Data taken from several tests of running voltage through leads on a whisker of Cadmium glass shows a dramatic reduction of resistance through the whisker, but a dramatic increase in temperature increases the amount of resistance. The temperatures are achieved through a cryo-cooler and a furnace.