https://archive.is/aC1ym

https://www.researching.cn/articles/OJ97a9c4dcc97720f3

  • DamarcusArt@lemmygrad.ml
    ·
    1 month ago

    I had a moment where I was like "Isn't that how radar works normally?" But no, radar uses sound waves, not light waves, so it is much slower than the speed of light.