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The girls at Ebisugaoka Middle School have come up with their own code to communicate with one another. This ordinarily wouldn't be a big deal, but their numerical cipher holds the key to a required ...

Careful what you leave in your lockers, high school students and gym-goers. An invasion of 3-D printed robots may be coming, capable of popping one of the world's most ubiquitous brands of combination ...

Here’s a really fascinating circuit that implements a combination lock using relays and logic gates. Even with the schematic and written explanation of how it works we’re still left somewhat in the ...