Family Quotes and Sayings â Family Day. âFamilies are like fudge â mostly sweet with a few nuts.â. âOur family is a circle of strength of love with every birth and every union the circle grows.â. âEveryone needs a house to live in, but a supportive family is what builds a home.â Â» Anthony Liccione. âYou donât choose your family.
Mercury was historically the first to show superconductivity, and it is an example of a Type I superconductor. Its practical usefulness is limited by the fact that its critical magnetic field is only 0.019 T, so the amount of electric current it can carry is also limited.
Superconductivity is the ability of certain materials to conduct electric current with practically zero resistance. This produces interesting and potentially useful effects.For a material to behave as a superconductor, low temperatures are required.Superconductivity was first observed in 1911 by H. K. Onnes, a Dutch physicist. His experiment was conducted with elemental mercury at 4 degrees kelvin (approximately -452 degrees Fahrenheit), the temperature of liquid helium.his produces interesting and potentially useful effects. For a material to behave as a superconductor, low temperatures are required. Superconductivity was first observed in 1911 by H. K. Onnes, a Dutch physicist.