Obsolete

China's New Megarocket Design Shows NASA's SLS Is Already Obsolete

China’s New Megarocket Design Shows NASA’s SLS Is Already Obsolete

The launch of a Long March-2F Y12 rocket on June 17, 2021.Photo: Ng Han Guan (AP) Reusable rockets, whether large or small, are the future, and as a newly unveiled model of a Long March 9 launch vehicle suggests, Chinese rocket scientists are coming around to the idea. A team in China presented its updated …

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The Nikon Z9's 'Pre-Release' Feature Makes Lightning Triggers Obsolete

The Nikon Z9’s ‘Pre-Release’ Feature Makes Lightning Triggers Obsolete

If you’ve ever tried to photograph lightning during the daytime, you know it’s almost impossible. By the time you press the shutter button, it’s gone. That’s why lightning triggers, while no guarantee of success exists. But the addition of the new “Pre-release” feature in the Nikon Z9 mirrorless camera now makes those triggers obsolete. It …

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