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Liquid spacetime

If spacetime were a fluid, it would have very low viscosity, just like a "superfluid". A study carried out jointly by the International School for Advanced Studies (SISSA) of Trieste and the Ludwig-Maximilian University of Munich shows how the "atoms" making up the fluid of spacetime should behave, according to models of quantum gravity.

The secret life of knots

The scientific journal Macromolecules dedicates the cover of this month's issue (available online from June 11th) to a research coordinated by Cristian Micheletti of the International School for Advanced Studies (SISSA). Micheletti and his colleagues,

that include Luca Tubiana (a former SISSA student, now working at the Josef Stefan Institute of Ljubljana) and Angelo Rosa (a researcher at SISSA) simulated the dynamics of the movements with which a polymer tends to knot.