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  • 2019
    06-16
    但墙面是粗糙的,当屏幕上的光投射到上面时,光线会往各个方向反射,我们称之为“漫反射”。
  • 2019
    06-16
    荷兰乌得勒支大学的光学物理学家Allard Mosk曾表示:“人们认为,在没有任何先进仪器的情况下,只利用墙面上漫反射的光重建图像几乎是不可能的。”
  • 2019
    06-16
    图片来源:Praveen Kumar Vemula et al.
  • 2019
    06-16
    For the first time ever, measurements from NASA satellites are being used to help combat a potential outbreak of life-threatening cholera. Humanitarian teams in Yemen are targeting areas identified by a NASA-supported project that precisely forecasts high-risk regions based on environmental conditions observed from space. In November, NASA scientists and satellite data analysts worked daily to produce maps and damage assessments for disaster managers battling major wildfires near Los Angeles and in Northern California. Ice losses from Antarctica have tripled since 2012, causing sea levels to rise faster today than at any time in the past 25 years, according to a major international climate assessment funded by NASA and ESA (European Space Agency.) NASA launched the Global-scale Observations of the Limb and Disk (GOLD), its first mission to provide unprecedented measurements of the temperature and composition of Earth’s upper atmosphere.

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