Community Design Crit - April 10, Inclusive Combination Locks
antranig.basman at colorado.edu
Tue Apr 10 09:35:20 UTC 2018
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:
> Hi, All:
> 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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