Tech Explorist: A material is said to show superconductivity when it can convey electric current with essentially zero obstruction.
So not at all like the ordinarily utilized materials, for example, copper and steel, a superconductor can convey a current inconclusively without losing any energy.
Superconductors are as of now utilized for some applications such hardware, levitation of trains, particle accelerators, and superconducting coils.
In any case, they should be cooled to low temperatures, which limit their utilization in our regular day to day existence.
Now for the first time scientists at the Indian Institute of
Science (IISc), Bengaluru have
been able to achieve superconductivity at ambient temperature and pressure.
A large number of materials have been found to undergo normal to superconducting transitions.
But such transitions require extremely low temperature and/or extremely high pressure.
Achieving this transition at ambient temperature and
pressure, therefore, gains great significance.
Scientists observed superconductivity in nano-sized films and pellets made of silver nanoparticles installed in a gold grid. Superconductivity was seen at minus 37 degree Celsius.
The resistance observed is low — 10-4 ohms — yet not zero.
The limitation to measuring even lower resistance arises from instrument sensitivity, the authors claim.
Nayeemul Islam khan
ENA SHAKUR'S EMARAT 19/3 Bir Uttam Qazi Nuruzzaman Sarak. West Panthapath (Beside Square Hospital)Dhaka.