Because at present all superconductors must be super-cooled in a coolant such as liquid nitrogen to become superconductors.
In superconductors, no electricity is wasted because there is no resistance to the flow of electrons. In conductors any electricity not used, is wasted.
Because refrigerating superconductors to the cryogenic temperatures needed by current ones is expensive, severely limiting the applications they are used in.Metallic superconductors need cooling to the temperature of liquid helium.Copper oxide ceramic superconductors need cooling to the temperature of liquid nitrogen.Room temperature superconductors, if they exist, would need little or no cooling.
Yes, they are used in telecommunications base stations.Some components needed in telecommunications base stations, most importantly filters, have better performance when superconductors are used instead of metals.
Bismuth can be used in:- medicines- alloys- cosmetics- superconductors
Everyday. I am using it everyday for two hours as after using it i go to school.
Beta particles are often used in smoke detectors.
Tantalize, tantalate (used in chemistry, not often in everyday speech).
I think so the super conducting material used will melt
Superconductors have zero resistance, and are used in powerful magnets for MRI etc, and magnetic levitation.
The chemicals in shampoo and conditioner can cause damage to your hair if used too often.
I don't think so. Semiconductor processing requires very clean steps. and superconductors require the use of heavy metals, which can contaminate the process. Besides, superconductors require special equipment that does not exist in the semiconductor industry. The cost of introducing superconducting materials outweighs the benefits of using the materials. Perhaps one day, superconductors and semiconductors can co-exist in an integrated circuit. If the question is about whether superconductors are involved in fabricating transistors (meaning the fabrication equipment), I don't see a need -- we can make do with what we have.
Everyday. The old traditional blackboard gets chalk dust build up on it as it is used.