power transmission is an endless battle with the phenomenon of resistance, which leads to losses. The search for a superconductor, which offers no resistance to the passage of electricity, has kept many scientists busy.

Superconductors we know already work at extremely low temperatures. In 1986, science found materials that work at relatively higher temperatures. But how they worked was not understood. Now we know.

At room temperature, superconductors do not conduct electricity efficiently as there exists a natural repulsion between electrons. Conduction can happen efficiently only when repulsion between electrons is reduced, and that happens at very low temperatures, at around -253