Category: Interactions

  • Limits of measurements… Limits of out self…

    Limits of measurements… Limits of out self…

    The limits of classical measurements of mechanical motion have been pushed beyond expectations in recent years. But the sensitivity that we can achieve using purely conventional means is limited. For example, Heisenberg’s uncertainty principle in quantum mechanics implies the presence of “measurement backaction”: the exact knowledge of the location of a particle invariably destroys any […]

  • Light. Low light. Essence.

    Light. Low light. Essence.

    It was a puzzle about birds. Migratory birds are known to rely on Earth’s magnetic field to help them navigate the globe. And it was suspected that a protein called cryptochrome, which is sensitive to blue light, was making it possible for birds to do this. Yet many of these animals are also known to […]

  • Octopuses’ arms. Universe’s brain.

    Octopuses’ arms. Universe’s brain.

    How octopuses’ arms make decisions: Researchers studying the behavior and neuroscience of octopuses have long suspected that the animals’ arms may have minds of their own. A new model is the first attempt at a comprehensive representation of information flow between the octopus’s suckers, arms and brain, based on previous research in octopus neuroscience and […]

  • Forgiving. Hating. Loving.

    When assessing the moral character of others, people cling to good impressions but readily adjust their opinions about those who have behaved badly, according to new research. This flexibility in judging transgressors might help explain both how humans forgive – and why they sometimes stay in bad relationships, said the study’s authors. (The research – […]

  • The power of minorities. Modern society. Interlinked.

    A study finds that when 25 percent of people in a group adopt a new social norm, it creates a tipping point where the entire group follows suit. This shows the direct causal effect of the size of a committed minority on its capacity to create social change. (1) Even the 1 can change the […]