Engineering Design

  1. Psychology

    Friends’ good moods can be contagious

    Good mental health spreads through teen social networks, but depression doesn’t, a new study finds.

  2. Tech

    How to print shape shifters

    3-D printing was only the beginning. Scientists are pursuing 4-D printing, creating objects that can move and interact with their surroundings.

  3. Health & Medicine

    Cool Jobs: Finding foods for the future

    What's for dinner... tomorrow? Scientists are developing new foods to meet the demands of the growing population in a changing world.

  4. Environment

    Insecticide can change a spider’s personality

    A chemical meant to kill moths affects the behavior of some spiders. It alters the spiders’ ability to capture prey — including those moths.

  5. Science & Society

    Retractions: Righting the wrongs of science

    Retractions let scientific journals remove bogus studies from the record. It's part of a self-correction process that helps move science forward.

  6. Health & Medicine

    Chikungunya wings its way north — on mosquitoes

    A mosquito-borne virus once found only in the tropics has adapted to survive in mosquitoes in cooler places, such as Europe and North America.

  7. Brain

    To protect kids, get the lead out!

    Lead poisons hundreds of thousands of children. In Chicago, experts show how the toxic metal hurts test performance in school.

  8. Computing

    These young scientists are passionate about tech and math

    The 2015 Broadcom MASTERS International delegates show why math and computer skills are key to the success of science-fair projects.

  9. Space

    Students sent instrument to Pluto

    The student-built dust counter on NASA’s New Horizons spacecraft is measuring how much grit and debris orbits out beyond Neptune.

  10. Tech

    This battery stretches without losing oomph

    Engineers have made a durable lithium-ion battery that can stretch to 150 percent of its original length. One day it could power wearable electronics.

  11. Computing

    Computing: Swapping a glove for the keyboard

    Sensor-studded gloves, designed by a Texas teen, might someday serve as a virtual keyboard or musical instrument — or even help interpret sign language.

  12. Plants

    Using plants to solve environmental problems

    Problems in their communities suggested good research projects to three teens. Each wanted to tackle a different issue, from pollution to world hunger. To learn more about these issues, they turned to their local ponds, wetlands and gardens.