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Looking at England’s new £50 note we’re told that the ticker tape depicts Alan Turing’s birth date (23 June 1912) in binary code. I am unable to figure out what kind of encoding they used. Can somebody help me? (I suppose it’s somewhat appropriate to use a code that does not seem easy to break. :) )
I should have refreshed before posting. Deleting one’s posts is not possible, is it?
I would guess if alan turing used a date on a 5 bit (=word) computer not having much memory to use:-
maybe one word each for “day of month” and “month” and two words for “year” (zero been = year 1900) which covers a 1000 years
so 20 bits = 10111 00110 00000 00110
it’s catching, need an edit/delete
so 20 bits = 10111 00110 00000 01100 (23) (6) (0)*32+(12)
Thanks for the link, Burglar. I didn’t occur to me that the “code” was simply a single integer.
urmaul, it is indeed impossible to delete a post. It used to be a perk of being a member, but no more.
On the £50 note I would make the Turing machine bits into a hologram ( maybe up/down ) of birth and death dates converted to DDMMYYYY format as a decimal and then to binary