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Your search has returned 452 images:
  • ALMA telescope
  • multiplication
  • person on dialysis
Your search has returned 1862 articles:
  • News

    How scientists took the first picture of a black hole

    Black holes are extremely camera shy. Supermassive black holes, ensconced in the centers of galaxies, make themselves visible by spewing bright jets of charged particles or by flinging away or ripping up nearby stars. Up close, these behemoths are surrounded by glowing accretion disks of infalling material. But because a black hole’s extreme gravity prevents light from escaping, the dark...

    04/10/2019 - 09:57 Astronomy, Physics, Technology
  • News

    Mathematicians may have found the fastest way to multiply huge numbers

    Multiplying 2 x 2 is easy. But multiplying two numbers with more than a billion digits each — that takes some serious computation.

    The multiplication technique taught in grade school may be simple, but for really big numbers, it’s too slow to be useful. Now, two mathematicians say that they’ve found the fastest way yet to multiply extremely large figures.

    The duo claim to have...

    04/08/2019 - 07:00 Numbers, Computing
  • News

    Blood vessels built from a patient’s cells could help people on dialysis

    Bioengineered blood vessels are one step closer to being available for patients.

    In clinical trials, these vessels were installed in the arms of dialysis patients and successfully integrated into their circulatory systems, researchers report online March 27 in Science Translational Medicine. The new blood vessels, which eventually host the patient’s own cells after implantation, are...

    03/27/2019 - 14:01 Clinical Trials, Biomedicine, Technology
  • Letters to the Editor

    Readers respond to classroom robots, soil erosion and more

    Robot revolution?

    Educational robots could help students learn new skills and good study habits. But researchers still have a lot to learn about the potential risks involved when young kids keep close company with such robots, Maria Temming reported in “Robots are becoming classroom tutors. But will they make the grade?” (SN: 2/16/19, p. 16).The story reminded reader A. Bogart of Isaac...

    03/27/2019 - 07:00 Robotics, Anthropology, Health
  • News in Brief

    An origami design helps this robot lift delicate and heavy cargo

    A new robotic gripper is a strong “hand” with a soft touch.

    The bell-shaped gripper has a silicone rubber skeleton with an intricate origami design, wrapped in an airtight, latex rubber skin. When a vacuum sucks air out of the gripper, the skin constricts, forcing the origami skeleton to collapse into a narrow funnel. The bunched-up gripper’s ridged interior and rough latex skin help it...

    03/14/2019 - 00:05 Robotics, Technology
  • Reviews & Previews

    Nine companies are steering the future of artificial intelligence

    The Big NineAmy WebbPublicAffairs, $27

    Whether artificial intelligence is humankind’s best friend or greatest threat has been widely debated. We’ve all heard promises of device-studded smart homes conferring unprecedented convenience, as well as warnings of killer robots. The Big Nine is a different kind of story about the potential risks and rewards of AI.

    Rather than...

    03/12/2019 - 14:38 Science & Society, Technology, Artificial Intelligence
  • 50 years ago, doctors lamented a dearth of organ donors

    Number of donors drops —

    Both laymen and surgeons have become faint-hearted about heart transplants.… The rejection and infection problems remain unsolved, and although Dr. [Denton A.] Cooley has performed the greatest number of transplants in the world, he has had to stop operating for lack of donors. — Science News, March 15, 1969

    Update

    Candidates for heart or other organ...

    03/12/2019 - 06:00 Biomedicine, Cells, Technology
  • News in Brief

    Japan puts plans for the world’s next big particle collider on hold

    Physicists awaiting approval to build the world’s first “Higgs factory” will have to wait a while longer.

    Japan had been expected to decide by March 7 whether it would host the International Linear Collider — a particle smasher that would produce subatomic particles called Higgs bosons far more efficiently than CERN’s Large Hadron Collider. Instead, Japanese officials encouraged the...

    03/07/2019 - 12:32 Physics, Technology
  • Feature

    Nanosponges sop up toxins and help repair tissues

    To take his fledgling lab to new heights, Liangfang Zhang hatched a plan that he considered brilliant in its simplicity. It involved procedures that many of his peers found a little out there. But if he could make his idea work, it would clear a major hurdle to safely ferry therapies through the body on nanoparticles one-thousandth the width of a human hair.

    Yet back in 2010, the young...

    03/07/2019 - 07:00 Biomedicine, Technology
  • News

    Wireless patches can comfortably monitor sick babies’ health

    Wireless skin patches that measure a baby’s vital signs could offer a safer, more comfortable way of monitoring premature and sick infants in the hospital.

    Each year, about 300,000 newborns are admitted to U.S. neonatal intensive care units, or NICUs, including preemies that are vulnerable to heart problems, breathing trouble and other medical complications (SN Online: 2/16/11). Doctors...

    02/28/2019 - 14:00 Health, Technology