This week’s new questions
4 November 2020
To what extent can satellites have satellites? And why don’t high-flying birds freeze in the frigid temperatures?
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Premium
Why hasn’t evolution given us eyes in the back of our head (continued)?
4 November 2020
It would be helpful to see behind us, so why don’t we have rearward vision?
Can you get triple or quadruple rainbows?
4 November 2020
I have seen many double rainbows, but do triple or quadruple ones exist? If so, where is the best place to see them, and what is the maximum number that could exist?
Why do I always sneeze twice?
4 November 2020
I never sneeze only once and rarely get three in. Is there a reason for this pattern?
