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  • The earliest evidence of plague

    Starting around 1,500 years ago, bouts of plague swept through Europe and Asia, killing millions of people. But previously unknown variants of the plague germ had begun infecting people in both places much, much earlier. That’s the conclusion of a new study. Eske Willerslev works at the University of Copenhagen, in Denmark. As an evolutionary geneticist, he studies how the genes in DNA change...
    07:00 AM, October 28, 2015 Body & Health, Genetics, Microbes, Fungi & Algae
    Readability Score: 8.2
  • Retractions: Righting the wrongs of science

    If the results from an experiment look too good to be true, look again.Those are wise words to remember. Consider, for example, a recent case of what looked like a breakthrough in treating the deadly virus HIV. The findings turned out to be bogus. All it took was a second look.A study reporting success with the vaccine was published — then later retracted. When a journal retracts a paper, the...
    07:15 AM, September 11, 2015 Science & Society
    Readability Score: 7.5
  • Eureka! Lab

    Oops. Correcting scientific errors

    Did you hear there were bacteria that could cause bubonic plague and anthrax on the New York City subway? Many media outlets reported that scientists swabbed the subway and found genes from the bacteria that cause these deadly diseases.It now appears those scientists were wrong.There probably were no deadly germs on the subway — certainly none that riders need to worry about. The scientists who...
    07:00 AM, August 25, 2015
    Readability Score: 7.7
  • Models: How computers make predictions

    You line up a football to kick a field goal. Will you make it?Success will depend on lots of things. Your distance from the goal post, the strength of your kick, your focus, and even the angle of your foot — all will affect the outcome. Even the wind will make a difference.Each of these factors is known as a variable. That means each can vary, or change. Some variables also can affect each other....
    13:45 PM, October 9, 2014 Mathematics, Computers & Electronics
    Readability Score: 7.7
  • Questions for Models: How computers make predictions

    SCIENCEBefore readingHow fast someone can run the 100-meter dash depends on a lot of things. List as many of these variables as you can.In the days before email, schools often used phone trees to quickly and easily spread information. To share a message, each classroom family would call two other families. Each of those families then would call two more, and so on. Sketch out a phone tree for...
    13:45 PM, October 9, 2014 Classroom Questions
  • Eureka! Lab

    Intel STS finalist uses math to predict breast cancer spread

    Esha Maiti, 17, decided she wanted to study cancer after her grandmother passed away from misdiagnosed breast cancer. But at first she wasn’t sure where to start. Esha hit on her method in 10th grade. “I was in statistics class, and there was one of those Fun Fact boxes in my text book that talked about Monte Carlo simulations,” she says, “and I was thinking of cancer when I read that box, so I...
    13:45 PM, March 24, 2014
    Readability Score: 8.2
  • Eureka! Lab

    Teen finds the ‘shape’ of our beating hearts

    WASHINGTON — Kevin Lee, 17, has always found the heart interesting. “It maintains a steady rhythm for millions of beats,” he says. Then, suddenly, “it can fail without any explanation.” But three years ago, the heart-obsessed senior at University High School in Irvine, Calif., was no longer content to sit on the sidelines. “I saw all these stories in the news about these athletes suddenly...
    18:00 PM, March 11, 2014
    Readability Score: 8.7
  • Pathways to research: Connecting with scientists

    Not many scientists begin their careers with a busted knee. But that’s exactly how Evan Olin, now 18, got his start. While a freshman at Ossining High School in New York, this competitive runner ran so fast and so hard that he sustained serious injuries to both legs. It kept him off the track for months. Rather than becoming discouraged by his limping gait, however, Olin turned to science. He...
    11:33 AM, August 2, 2012 Young Scientists, Teaching Science
    Readability Score: 8.6
  • Electronic skin

    James Bond and his enemies would be interested in the goings-on at the laboratory of John Rogers. So would Batman, the Spy Kids, Darth Vader and their enemies. That’s because Rogers, a materials scientist at the University of Illinois at Urbana-Champaign, mixes electronics with the human body to create new devices not found even in science fiction.Make room, Lord Vader. There’s a new kind of...
    13:35 PM, January 18, 2012 Computers & Electronics, Materials Science
  • Question Sheet: Firefly Delight

    SCIENCE Before reading: Where would you go if you wanted to see fireflies?  Come up with two questions of your own about fireflies. During reading: How do fireflies produce light? See gslc.genetics.utah.edu/units/basics/firefly/(University of Utah).  What gas plays an important role in controlling when a firefly's light goes on and off?  How is it possible to make animals such as fruit flies...
    15:13 PM, December 8, 2011 Other

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