uv-light

listen to the pronunciation of uv-light
الإنجليزية - التركية
uv ışık
uv-light

    النطق

    فيديوهات

    ... the velocity of this wave and found out it was the velocity of light.  And then he made ...
    ... this incredible discovery, this is light.  That's what light is.  It doesn't by accident ...
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