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  1. Tech

    Spot On: Printing flexible electronics one nanodot at a time

    A new high-resolution printing technique could make flexible electronics such as plastic displays and solar cells easier to produce.

    By Alexandra Goho
  2. Health & Medicine

    Brain Sabotage: Alzheimer’s protein may spawn miniseizures

    Amyloid-beta, a protein implicated in Alzheimer's disease, causes misfiring of neurons and minor brain seizures in mice.

    By Nathan Seppa
  3. Earth

    Grazing on the Periodic Table: Some ancient microorganisms lived on a diet of pure sulfur

    Microorganisms that lived 3.5 billion years ago obtained energy by metabolizing pure sulfur.

    By Sid Perkins
  4. Health & Medicine

    Debate Renewed: Diabetes drug ups heart risk

    A popular diabetes drug significantly increases the risk of heart failure and heart attack in those who take it.