Date: 6 months ago   Category: Cosmos

At the ISS have created the coldest place in the Universe


Scientists of NASA have for the first time created onboard the International Space Station (ISS) condensate to Bosa — Einstein, having cooled rubidium atoms up to the temperature equal to one ten-million part of kelvin above absolute zero (one kelvin is equal minus 272,15 degrees Celsius). It is about three kelvins lower, than the average temperature of space. It is reported in the press release of Jet Propulsion Laboratory. At absolute zero, equal minus 273,15 degrees Celsius (zero kelvins), atoms of substance have to stop the movement completely. However it is unattainable in practice because of zero fluctuations — the quantum fluctuations which are shown at achievement by the system of the minimum power state. Such effect is observed in condensate to Bosa — Einstein consisting of bosons — particles (or atoms) which can occupy the same quantum state. As all particles are capable to reach the minimum power level, all condensate ceases to interact with atoms of surrounding substance. As a result of it, for example, friction force disappears and there is a superfluidity. On Earth condensate to Bosa — Einstein exists fractions of a second, however at the space station duration of existence of this form of matter has reached 5-10 seconds. Besides, scientists are capable to reproduce experiments within six hours a day. It is expected that the phase of active researches within the Cold Atom Laboratory project will begin at the beginning of September and three years will last. In the future scientists plan to reach lower temperatures and also to use for condensate creation to Bosa — Einstein potassium isotopes. It is more than important news in Film of Day Telegram-channel. Subscribe!

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