I wondered how it worked, and appears to be a form of "mechanical hash
"The number of combinations is unlimited, but the number of
mechanically-possible states is markedly finite: 7,501 to be exact. mh
likens this to the mechanical version of a hash function. I can't think
of a more concise allegory for it."
On 09/04/2018 16:51, Tony Atkins wrote:
Very interesting topic. I chatted with Jonathan about this, but wanted
to share with the group, I bought one of these a few years ago just
because I was so excited that something like it was available for a few
dollars at a non-specialty store:
You enter a combination of motions along the cardinal points to unlock
it. It's indexed so that you can only push along the cardinal
directions and there's a good "click" when you have pushed the stick far
enough. All you need to feel is which way is up, which is pretty
obvious as the metal of the lock is always "up" and feels different than
the body. I've unlocked it in the dark and one handed, it's a good design.
Anyway, sadly the timing never works out for me to attend the design
crits, but I hope to see the slides at least as I am really interested
in the topic.
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