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Your search has returned 2923 articles:
  • Eureka! Lab

    Popping my own corny experiment

    Popcorn is one of my favorite foods. I love its squeaky crunch and the taste of butter and salt. Popping my own corn on the stove top makes me think of relaxing with a book or settling in with a fun movie. And now, it also makes me think of science.Scientists recently popped corn in a conventional oven to determine at what temperature the kernels explode. Then they invited the rest of us to run...
    09:00 AM, February 26, 2015
  • Ocean animals have mushroomed in size

    Ocean animals have been getter bigger over the last half-billion years. Not a little bigger. Not even a lot bigger. They have mushroomed gigantically, scientists now conclude.Their new finding lends support for something known as “Cope’s rule.” It holds that animals tend to evolve into species that are much larger than their distant ancestors. This hypothesis takes its name from the 19thcentury...
    07:00 AM, February 26, 2015 Animals
  • Peanuts for baby: A way to avoid peanut allergy?

    HOUSTON, Texas — Infants eating small but regular doses of peanut butter are less likely to develop an allergy to peanuts than are babies eating no peanuts. That’s the surprising finding of a new study.Many people, starting in childhood, develop a serious allergy to peanuts. Eventually, even the briefest exposure — such as a kiss from someone who recently ate peanuts — may cause a serious...
    09:10 AM, February 25, 2015 Body & Health, Food & Nutrition
  • Cats and foxes are eating up Australia’s mammals

    People first settled Australia some 40,000 to 50,000 years ago. Then, in 1788, England established a colony there. These European settlers spread widely. In time, they created the nation of Australia. The European immigration also led to a little-noticed wave in extinctions of Australian mammals. That’s the finding of a new study. One main cause of those extinctions appears to be the introduction...
    07:00 AM, February 24, 2015 Animals, Environment & Pollution
  • Eureka! Lab

    Scientists Say: Pareidolia

    Pareidolia (noun, “Pear-aye-DOH-lee-ah”)When we imagine a pattern or meaning where none really exists. Some people see a face when they look at the moon. But the craters are randomly placed. The “man in the moon” that people see is the result of pareidolia.In a sentence Recently, the Hubble Space Telescope took a photo of two bright galaxies. The light around the galaxies distorted into a curve...
    09:00 AM, February 23, 2015
  • Sunglasses on demand

    Light-sensitive sunglasses can shield your eyes from bright glare. But the glasses take minutes to darken — and later lighten up again. If you’re suddenly thrust into shadows, do you want to wait? Soon, you may not have to.Chemists have made sunglasses that can switch from dark to clear and back with the tap of a button. Each changes takes only about a second.Special plastics let the sunglasses...
    07:00 AM, February 23, 2015 Technology & Engineering, Chemistry
  • Vision-ary high tech

    SAN JOSE, Calif. — Telescopic contact lenses might one day zoom with a wink of the eye. It's one of several emerging technologies that promise to improve, restore or preserve the vision of people with serious eye diseases.The zoomable lenses are being developed at the Swiss Federal Institute of Technology in Lausanne. They include a tiny telescope that magnifies objects 2.8 times, says Eric...
    07:15 AM, February 20, 2015 Body & Health, Technology & Engineering
  • Questions for Vision-ary high tech

    SCIENCEBefore reading1.         You probably know someone who has vision problems. How is that person’s vision affected? What kind of technology do they use to improve their vision?2.         Come up with a list of five ways in which your life would be affected if you were not able to see clearly.During reading1.            How does macular degeneration affect a person’s vision?2.            The...
    07:00 AM, February 20, 2015 Classroom Questions
  • Eureka! Lab

    How popcorn got its pop

    The next time you pop corn on the stove for your movie night, keep a close eye on the kernels. A piece of corn heats up and begins to swell. Suddenly — POP! A tiny seed becomes a big, airy puff of corn.Humans have been popping corn for centuries. But exactly how this explosion occurs wasn’t quite clear. Now, two scientists have identified the missing stages —and designed an experiment that you...
    10:41 AM, February 19, 2015
  • The steady creep of less sleep

    Tweens and teens report getting less and less sleep with each passing year. The disturbing trend comes from data collected over the past 20 years from U.S. students.As of 2012, more than half of the surveyed kids age 15 or older reported sleeping less than seven hours a night. That is two to three hours less sleep than doctors and others recommend. Sleep is essential, especially for young kids...
    10:12 AM, February 19, 2015 Body & Health

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