9th Jan 2016 – A Rotational Date

9 1 16 A Rotational date9th Jan 2016 – 9 1 16 – it’s not a palindromic date, but it is a rotational date: it has an order of rotational symmetry of 2.  That means if you rotate it about its centre it looks exactly the same when rotated through 1800

(You have to pick the right font, of course. In my example above I’ve used “Bauhaus 93”)

Get spinning and enjoy the day!

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One Comment

  1. joy
    Posted 09/01/2016 at 9:43 am | Permalink

    When I was at grammar school, back in 1961, I was chuffed to bits to be the only child in my class who was able to tell when the next “upside down” year would occur – probably the only one who had great fun playing with numbers instead of chasing boys!!! (for non-maths geeks it’s 6009).

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