What's the true color of the sky?

 Technically, the short wavelengths that scatter across the sky correspond to the colours blue and violet, making the real colour of the sky a bluish purple. However, the cone cells in our eyes that detect colour aren't very sensitive to violet, so we see the sky as blue.

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Germany under pressure to explain leaked phone call

Germany is scrambling to explain how an audio of air force officials apparently discussing giving Ukraine long-range missiles was leaked by Russian sources. Details of alleged British operations on the ground in Ukraine are also mentioned. Russia's state-run RT channel posted an audio recording of the meeting last week. The breach has sparked major concerns about Germany's security among allies, including France and the UK. Germany's defence ministry has confirmed that a conversation of air force officials was "intercepted" - but couldn't say whether the recording had been tampered with. German Chancellor Olaf Scholz has repeatedly ruled out sending the Taurus missiles to Ukraine. Nevertheless, in the recording four senior German military officers, including Air Force chief Ingo Gerhartz and Brig Gen Frank Gräfe, are seemingly heard discussing the prospect of supplying Ukraine with the long-range cruise missiles and saying the weapons could be used to hit the ...
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