Scientists Say

A weekly word defined, in a sentence and in context.

  1. Animals

    Scientists Say: Compound Eye

    Compound eyes made up of many smaller visual structures may not produce crisp images, but they offer a great field of view.

  2. Math

    Scientists Say: Correlation and Causation

    There is a correlation between countries where people eat more chocolate and those that produce more Nobel Prize winners. But beware assuming that one variable causes the other.

  3. Genetics

    Scientists Say: Genetic Engineering

    Genetic engineering involves adding, changing or removing certain pieces of DNA from a living thing to give it desired traits.

  4. Materials Science

    Scientists Say: Semiconductor

    Modern electronics, from cell phones to video games, work thanks to these conductor-insulator hybrids.

  5. Tech

    Scientists Say: Digital Footprint

    Your digital footprint contains both what you post online — and information about your online activity collected by others.

  6. Earth

    Scientists Say: Supercontinent

    These gigantic landmasses form when much of Earth’s landmass smashes together.

  7. Space

    Scientists Say: Corona

    The sun’s corona can only be seen without special instruments during a total solar eclipse.

  8. Tech

    Scientists Say: Bionic

    This type of technology combines natural and synthetic systems. It can restore lost vision and mobility and even grant cells new abilities.

  9. Animals

    Scientists Say: Megalodon

    The extinct megalodon (Otodus megalodon) was the largest shark to ever prowl the oceans.

  10. Environment

    Scientists Say: Carbon capture

    Carbon capture technology tackles climate change by stomping out carbon dioxide at the source.

  11. Brain

    Scientists Say: Confirmation Bias

    Confirmation bias is the tendency to seek out and believe information that agrees with what we already think.

  12. Science & Society

    Scientists Say: Model

    Models are representations of real-life systems or processes that we use to ask questions, make predictions and test our knowledge.