United customers can look forward to the following functions in the app: 1  Book flights and manage their MileagePlus and OnePass accounts. 2  Check in. 3  Access mobile boarding passes with one touch.  Get flight status/ 1 updates. Follow United's Twitter feed for up-to-the-minute updates on the airline.  Interactive airport maps.
Supernatant Definition - The supernatant is the clear liquid that lies above the solid residue after centrifugation, precipitation, crystallization or... Supernatant Definition - The supernatant is the clear liquid that lies above the solid residue after centrifugation, precipitation, crystallization or...
Definition: A superconductor is an element or metallic alloy which, when cooled to near absolute zero, dramatically lose all electrical resistance. In principle, superconductors can allow electrical current to flow without any energy loss (although, in practice, an ideal superconductor is very hard to produce).his type of current is called a supercurrent. In addition, superconductors exhibit the Meissner effect in which they cancel all magnetic flux inside, becoming perfectly diamagnetic (discovered in 1933). In this case, the magnetic field lines actually travel around the cooled superconductor.