পদার্থের ঘনীভবন অবস্থা প্রথম কত সালে আবিষ্কৃত হয় ?
In 1995, a gas of rubidium atoms cooled down to a temperature of 170 nK was used to experimentally realize the Bose–Einstein condensate, a novel state of matter originally predicted by S. N. Bose and Albert Einstein, wherein a large number of atoms occupy one quantum state.
1995