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  1. Tech

    Particles from tree waste could prevent fogged lenses, windshields

    A new coating made from a renewable resource — water-loving nanoparticles made from wood — could keep glass surfaces fog-free.

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  2. Math

    Scientists Say: Prime number

    Prime numbers’ unique quality — being divisible only by themselves and one — makes them useful for encrypting secret information.

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  3. Tech

    Bits of trees can make and store energy for us to use

    This cellulose and lignin, two major building blocks of trees, could lead to greener electronics.

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  4. Tech

    Bionic plants and electric algae may usher in a greener future

    Some can aid the climate by removing pollutants. Others would just avoid dirtying the environment in the first place.

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  5. Brain

    Scientists Say: Deep brain stimulation

    Through wires implanted in a person’s brain, this medical treatment can help treat various conditions.

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  6. Tech

    How to prevent the robot replication apocalypse

    Today’s bot-building robots aren’t set on world domination. But scientists and philosophers want to keep future tech in check.

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  7. Climate

    Hydrogen energy could help our climate — depending on its source

    Hydrogen energy doesn’t emit greenhouse gases when it’s used. But how it’s produced will affect how useful it can be in slowing climate change.

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  8. Tech

    Explainer: The hydrogen rainbow

    Hydrogen works the same, regardless of its source. But how clean or “green” it is very much hinges on its color-coded name — which points to how it was made.

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  9. Brain

    Let’s learn about mind reading

    In the future, more advanced, less bulky mind-reading equipment could raise serious privacy concerns.

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