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Negative emotions can reduce our capacity to trust

Negative emotions can reduce our capacity to trust

Negativity is a tendency to be downbeat, disagreeable, and skeptical. It's a pessimistic attitude that always expects the worst. Undoubtedly negative emotions affect how...
Perovskite lattice. Credit: Wikimedia Commons.

Efficient light conversion with perovskite nanocrystals

A new study by the UvA-IoP physicists suggests that certain perovskites do have this desirable property. Certain crystals show very interesting properties at the nanoscale....
This nozzle extrudes liquid as a sheet, which fractures into droplets whose size can be predicted by a new formula. Credit: S. Kooij et al./Phys. Rev. X

What determines the droplet size in sprays?

A spray nozzle produces a range of droplet sizes that can often be summarized by a single number. Which single number is appropriate to use...