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Your search has returned 2964 articles:
  • News

    This theory suggests few workers were needed to cap Easter Island statues

    The story of how some of the massive stone statues on Rapa Nui, also known as Easter Island, ended up wearing stone hats involves ramps, ropes and remarkably few workers, a contested new analysis suggests.

    No more than 15 people were needed to manipulate ropes that rolled stone cylinders, or pukao, up ramps to the top of forward-leaning statues, say archaeologist Sean Hixon of Penn State...

    06/08/2018 - 07:00 Archaeology, Anthropology
  • Science & the Public

    Privacy and consumer genetic testing don’t always mix

    For a few hundred dollars and a spit sample, you too could take a journey of genetic self-discovery. You may learn some things, but what are you giving away?

    Today, hundreds of companies offer to analyze your DNA, or parts of it, to let you in on everything from your health risks and ancestry to more dubious traits like intelligence or athletic ability (SN: 5/26/18, p. 20). The direct-to...

    06/05/2018 - 07:00 Genetics, Science & Society
  • Feature

    Future smart clothes could pack serious gadgetry

    In the future, leaving your phone charger at home will mean only one thing: You forgot to put on pants.

    Just as smartphones untethered users from their desktop computers, smart clothing is poised to bring personal electronics out of our pockets and onto our sleeves.

    The current generation of wearable technology that includes smart glasses and watches is still more marginal than...

    06/01/2018 - 10:57 Technology, Materials
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    Outside of the United States?...

    05/25/2018 - 15:58
  • 50 years ago, starving tumors of oxygen proposed as weapon in cancer fight

    Starve the tumor, not the cell

    Animal experiments demonstrate for the first time that transplanted tumors release a chemical into the host’s bloodstream that causes the host to produce blood vessels to supply the tumor.… If such a factor can be identified in human cancers … it might be possible to prevent the vascularization of tumors. Since tumors above a certain small size require...

    05/04/2018 - 11:00 Cancer, Biomedicine, Cells
  • Science Visualized

    Closing the gender gap in some science fields may take over 100 years

    If you’re a female computer scientist, you may not see an equal number of men and women working in your field in this century — or even the next one. It might take a whopping 280 years for that scientific discipline to bridge the gender gap, researchers report online April 19 in PLOS Biology.

    The study predicts when the gender gap will close in science, technology, engineering, math and...

    04/20/2018 - 13:19 Science & Society
  • Reviews & Previews

    ‘Weird Math’ aims to connect numbers and equations to the real world

    Weird MathDavid Darling and Agnijo BanerjeeBasic Books, $27

    Weird Math sets out to “reveal the strange connections between math and everyday life.” The book fulfills that laudable goal, in part. At times, teenage math prodigy Agnijo Banerjee and his tutor, science writer David Darling, find ways to make complex math relatable, like linking chaos theory to weather forecasting and...

    04/16/2018 - 07:00 Numbers, Computing, Science & Society
  • News

    Human brains make new nerve cells — and lots of them — well into old age

    Your brain might make new nerve cells well into old age.

    Healthy people in their 70s have just as many young nerve cells, or neurons, in a memory-related part of the brain as do teenagers and young adults, researchers report in the April 5 Cell Stem Cell. The discovery suggests that the hippocampus keeps generating new neurons throughout a person’s life.

    The finding contradicts a...

    04/05/2018 - 14:50 Neuroscience, Human Development, Cells
  • News

    Why science still can’t pinpoint a mass shooter in the making

    Immediately after a 19-year-old shot and killed 17 people and wounded 17 others at a Florida high school on Valentine’s Day, people leaped to explain what had caused the latest mass slaughter.

    By now, it’s a familiar drill: Too many readily available guns. Too much untreated mental illness. Too much warped masculinity. Don’t forget those shoot-’em-up video games and movies. Add (or...

    03/23/2018 - 11:46 Science & Society, Psychology, Mental Health
  • Letters to the Editor

    Readers muse about memory, magnetic monopoles and more

    Memory lane

    Inspired by flatworm memory experiments from the 1950s, researchers are on the hunt for the elusive engram — the physical mark that a memory leaves on the brain — Laura Sanders reported in “Somewhere in the brain is a storage device for memories” (SN: 2/3/18, p. 22).

    Readers flooded Science News with their thoughts and questions on the topic.

    Elizabeth Elliott...

    03/09/2018 - 10:20 Neuroscience, Animals, Particle Physics