Materials Science

  1. Physics

    New mirror picky in what it reflects

    A new type of mirror is selective in the light it reflects. It allows some wavelengths of radiation to pass through, while others bounce off.

  2. Animals

    Why you’ll never see a dirty gecko

    By knowing how a gecko’s skin works, could self-cleaning, water-repelling, antibacterial clothes be far behind?

  3. Tech

    Sunglasses on demand

    Plastics that conduct electricity let new color-changing sunglasses go from dark to light and back again at the tap of a switch. The shades could come in a range of colors too.

  4. Computing

    This ‘smart’ self-cleaning keyboard is powered by you

    A new electric keyboard locks out anybody but its owner. It’s not only self-cleaning but also powered by your fingertips.

  5. Materials Science

    ‘Smart’ windows could save energy

    Tiny chemical droplets in a liquid sandwiched between panes of glass turn cloudy when they warm up. This will block some sunlight and potentially save on air conditioning bills.

  6. Materials Science

    Scientists Say: Colloid

    When water hovers in the air as fog and when bits of fat disperse in water as milk, they form a type of substance called a colloid.

  7. Tech

    Rewritable paper: Prints with light, not ink

    Rewritable paper could save money, preserve forests and cut down on waste — and all without using any ink.

  8. Physics

    Nobel goes for making white LEDs possible

    The 2014 Nobel Prize in Physics has been awarded to scientists who discovered how to make blue light-emitting diodes. People really wanted white LEDs. The missing ingredient in making them was a building block: the blue LED.

  9. Tech

    Repelling germs with ‘sharkskin’

    A biotechnology company has found a way to repel superbugs without toxic chemicals. It mimics the texture of a shark’s skin.

  10. Tech

    Invisible plastic ‘ink’ foils counterfeiters

    Hidden images make a new label virtually counterfeit-proof, thanks to a combination of chemistry and nanotechnology.

  11. Health & Medicine

    Cool Jobs: Data detectives

    Statisticians are experts in seeing the patterns hidden within the raw numbers called data. They especially excel at finding real trends, while eliminating what is actually due to chance. That’s why they offer a good reality check in any field that involves numbers.

  12. Materials Science

    Looking unbelievably cool

    Everything above absolute zero gives off some heat. Usually objects radiate more heat — or energy — as their temperature climbs. But engineers now have created a material that sometimes appears to cool even as it is warming.