A Bose Einstein condensation, a state predicted by Einstein almost a century ago, is the unique state of matter in which certain types of atoms can exist in temperatures close to absolute zero. The Bose Einstein condensate is one of the simplest systems in nature. The Bose Einstein condensation shows the phenomenon of superfluity and superconductivity.Know More
The Bose Einstein condensate is a gas of atoms so dense and cold that their matter waves lose their individuality and condense into a macroscopic coherent superatom wave. Atomic Bose Einstein condensation very often occurs at a temperature near absolute zero. However, excitons are expected to exhibit the same phenomenon at temperatures that are millions of times higher.
Remarkably, this is a range of temperatures whereat Butov and his team have observed the onset of exciton coherence. Excitons are particles that can be created inside of semiconductors -- in this case, gallium arsenide, the material used to make transistors in cell phones. One can make excitons, or excite them, by shining bright light on a semiconductor. The light kicks electrons out of the atomic orbitals they normally occupy inside of the material. This creates a negatively charged "free" electron and a positively charged "hole."Learn more in States of Matter
Albert Einstein was born on March 14, 1879, and died 76 years later, on April 18, 1955. He is best remembered for his groundbreaking work on the general theory of relativity and the famous equation E = mc2.Full Answer >
Albert Einstein was not buried; he was cremated, and the location of his ashes is unknown. Einstein died in 1955 at a New Jersey hospital at the age of 76. The cause was internal bleeding, stemming from a burst aneurysm.Full Answer >
Most glass takes on a more fluid consistency at temperatures of around 1350 degrees Fahrenheit. At this temperature, glass has the consistency of honey or syrup.Full Answer >
Iodine sublimation is caused by temperatures high enough to break the bonds between the atoms in its crystal lattice in the absence of pressures sufficient to keep them close to one another. At the atmospheric pressures at sea level, these conditions are met at just above room temperature, and thus both iodine sublimation and iodine deposition are readily observed. Iodine is a blue-black solid that sublimes into a purple gas.Full Answer >