• 飓风玛丽在加州海域形成罕见巨浪

    14-08-28 Waves as high as 6m in southern California have damaged waterfront homes, knocked out pier pilings and attracted scores of surfers. 加州南部海域惊现高达六米的海浪,损毁了滨海地区的房屋、撞倒码头上的桩基并袭击了大量冲浪者。 The waves are the result o...

  • 星体的年龄能通过声波测出

    14-07-04 Determining the age of stars has long been a challenge for astronomers. In experiments published in the journal Science, researchers at KU Leuven's Institute for Astronomy show that 'infant' stars can be distinguished from 'adolescent' stars by meas...

  • 层状褶皱材料能更好控制波动

    14-01-27 Flexible, layered materials textured with nanoscale wrinkles could provide a new way of controlling the wavelengths and distribution of waves, whether of sound or light. The new method, developed by researchers at MIT, could eventually find applicat...

  • 机场扫描系统可使聚变等离子波纹图像化

    13-11-14 Millimeter-wave imaging technology is widely used in airborne radar(机载雷达) , automotive sensors and full-body scanners for passenger screening at airports. A new, quasi-optical radar technique images millimeter-wave radiation reflected from fus...

  • 生命的波纹

    12-11-28 My grandfather took me to the fish pond on the farm when I was about seven, and he told me to throw a stone into the water. He told me to watch the circles created by the stone. Then he asked me to think of myself as that stone. You may create lots...

  • 《灵魂冲浪》五

    12-08-10 精彩对白 Bethany: Hey, I'm home! Noah: Hey, there she is. Timmy: How was your trip? Bethany: Great. What's all this stuff? Noah: Oh, you know, just a little fan mail . Went ahead and sorted it out by country. Bethany: Are you serious? Timmy: Yup. An...

  • 《灵魂冲浪》一

    12-08-10 精彩对白 Host: Welcome, ladies and gentlemen, to the junior portion of the Maui Jim Turtle Bay Resort Invitational. We're expecting a great competition today. We've got skateboarding on the half-pipe. We've got all the action in the water. Watch top...

  • 威尼斯无线电波拥堵问题已被解决

    12-03-05 A group of Italian and Swedish researchers appears to have solved the problem of radio congestion(拥挤) by cleverly twisting radio waves into the shape of fusilli(意大利螺旋面) pasta, allowing a potentially infinite number of channels to be broa...

  • Surfing

    10-09-20 Hundreds of places in the world have huge blue waves, white sand beaches, and beautiful young people carrying surfboards. But, when people think of surfing, many first think of Hawaii, U.S.A. Not only because Hawaii has some of the best, and most da...

  • 为何有些人可以在任何情况下睡着

    10-08-11 Ever wonder why some people can sleep through just about anything, while others get startled awake at each and every bump in the night? A new report in the August 10th issue of Current Biology, a Cell Press publication, offers some insight: sound sl...