• 利用磁悬浮原理的空中盆栽

    16-02-05 Humans seem to be obsessed with things that float, like hoverboards, UFOs and levitating Bluetooth speakers. A Kickstarter project wants to extend that love for the defiance of gravity to plant life. Air Bonsai uses the power of magnetic levitation...

  • 有强磁场的恒星很常见

    16-01-05 Using a recently developed technique to detect magnetic fields inside stars, a group of astronomers -- including Matteo Cantiello and Lars Bildsten from UC Santa Barbara's Kavli Institute for Theoretical Physics (KITP) -- has discovered that strong...

  • 地球磁场不会翻转

    15-11-25 The intensity of earth's magnetic field has been weakening in the last couple of hundred years, leading some scientists to think that its polarity might be about to flip. But the field's intensity may simply be coming down from an abnormal high rath...

  • 量子自旋能产生无法停止的单维电子波

    15-11-20 In certain nanomaterials, electrons are able to race through custom-built roadways just one atom wide. To achieve excellent efficiency, these one-dimensional paths must be paved with absolute perfection--a single errant atom can stop racing electron...

  • 磁性细胞传感器

    15-11-04 MIT engineers have designed magnetic protein nanoparticles that can be used to track cells or to monitor interactions within cells. The particles, described today in Nature Communications, are an enhanced version of a naturally occurring, weakly mag...

  • 利用磁导率储存信息

    15-09-15 Scientists have made promising steps in developing a new magnetic memory technology, which is far less susceptible to corruption by magnetic fields or thermal exposure than conventional memory. The findings, which report the use of magnetic permeabi...

  • 地球磁场的年龄远大于预期值

    15-08-04 Since 2010, the best estimate of the age of Earth's magnetic field has been 3.45 billion years. But now a researcher responsible for that finding has new data showing the magnetic field is far older. John Tarduno, a geophysicist at the University of...

  • 科学家首次在动物体内发现磁场感受器

    15-06-23 A team of scientists and engineers at The University of Texas at Austin has identified the first sensor of the Earth's magnetic field in an animal, finding in the brain of a tiny worm a big clue to a long-held mystery about how animals' internal com...

  • 新型磁体在磁场中会释放热量

    15-05-21 A new class of magnets that expand their volume when placed in a magnetic field and generate negligible amounts of wasteful heat during energy harvesting, has been discovered by researchers at Temple University and the University of Maryland. The re...

  • 麻省研究员发明超灵敏磁场探测器

    15-04-07 MIT researchers have developed a new, ultrasensitive magnetic-field detector that is 1,000 times more energy-efficient than its predecessors. It could lead to miniaturized, battery-powered devices for medical and materials imaging, contraband detect...