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E.g., 04/24/2014
Your search has returned 278 articles:
  • Special Awards Organization Judging Process

    Overview of Judging ScheduleTUESDAYRegistration and Pre-judgingSpecial Awards Judges may register in the morning. Judges will receive a name badge that will have a red ribbon to designate a Special Award judge. Additionally, judges will receive a schedule, a Finalist Directory listing the finalists and project titles and other pertinent information. The name badge serves as official...
    15:02 PM, April 18, 2014
  • Eureka! Lab

    A new grant for young inventors

    Inventing something is a great way to learn. Building a wind machine can teach you about engineering. Designing a coffee maker forces you to consider aspects of chemistry. As students try to solve a problem, they begin to understand variables, engineering and design.The Lemelson-MIT InvenTeams Initiative provides grants of up to $10,000 to help high-school student groups invent. InvenTeams go on...
    09:00 AM, April 18, 2014
  • E-cigarette makers focus on teens

    Electronic-cigarette makers “are aggressively promoting their products using techniques and venues that appeal to youth,” a new report finds. It concludes that the U.S. government “should act quickly” to issue new laws.The offices of 11 Democratic Senate and House members issued the report on April 14. In it, the writers argue that new laws should end the targeting of e-cigarette advertising at...
    08:00 AM, April 17, 2014 Body & Health
  • World’s coolest ‘clock’ is also crazy-accurate

    On April 3, U.S. scientists announced the launch of the world’s most accurate atomic clock. It’s three times better than the United States’ former top clock. The new timepiece — named NIST-F2 — is so precise that it loses (or gains) no more than one second every 300 million years. That makes it about a million times more accurate than the first atomic clocks, built back in 1955.The new clock...
    09:35 AM, April 16, 2014 Light & Radiation
  • Questions for World’s coolest clock

    SCIENCEBefore reading:1.    A century ago, watches and clocks were made using a system of interlocking gears. Explain why the rotation of those gears might tell time. How might the size of those gears affect a clock’s accuracy?2.    The world’s atomic clocks have a precision most people cannot wrap their heads around. Can you envision why that level of accuracy would be helpful to cell-phone...
    09:30 AM, April 16, 2014 Classroom Questions
  • Explainer: How lasers make ‘optical molasses’

    Atomic clocks are some of the most accurate timepieces available. But they aren’t perfectly precise. So scientists compare their ticking rate to that of even better atomic clocks — the best in the world. In April 2014, NIST-F2 became the top clock in the United States. F2 currently is the premier “yardstick” for measuring a second of time.           To measure F2’s ticking rate, physicists at the...
    09:30 AM, April 16, 2014 Light & Radiation
  • Eureka! Lab

    Teaching clean energy with the power of wind

    BOSTON – On a breezy Friday afternoon, some teachers at the annual National Science Teachers Association meeting found themselves sitting before a pile of what looked like junk. Each seat had a plastic bag containing a seemingly random assortment of items. A pie tin, a plastic cup, dowels of various sizes, a cork, string, index cards and pieces of foam. Though the venue was cool, large box fans...
    09:00 AM, April 16, 2014
  • When a species can’t stand the heat

    Earth’s warming threatens to tilt populations of an unusual reptile so dramatically that the species’ long-term survival could be put in peril. The change could leave the species, a survivor from the age of the dinosaurs, without enough females to avoid extinction.The tuatara (TOO ah TAAR ah) is about the size of a squirrel. A crest of floppy white spikes runs down its back. Although it resembles...
    07:52 AM, April 9, 2014 Animals, Weather & Climate
  • Explainer: What is autism?

    Autism refers to a group of closely related disorders that affect how the brain develops. Experts use one blanket term —“autism spectrum disorders” —to refer to the whole group.Autism isn’t a disease that can be passed from one person to another. Nor do the vaccines commonly given in childhood cause autism, scientists say. The disorder appears to be due, at least in part, to the genes we inherit...
    09:01 AM, April 3, 2014 Brain & Behavior
  • Getting a head start on autism

    View the videoThis is the second of a two-part series on autism spectrum disorders.When Matthew Shumaker was diagnosed with autism in the early 1990s, his parents didn’t know anyone else who had a child with the brain disorder.How times have changed.On March 27, the Centers for Disease Control and Prevention, or the CDC for short, delivered surprising news: Autism is far more common than people...
    09:01 AM, April 3, 2014 Brain & Behavior

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