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Interesting, I hadn't realized this was a cube already in existence. Neat!

I've broken a few rubix cubes in my day and so many of them have hallow squares so I'm not surprised you could hide stuff in one. Hell if you customize one you can probably get it to hold a huge amount of data.

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These cubes actually come completely apart to replace the springs. You could probably put a good 4-5 micro-SD cards in the middle plastic ball, but it's not exactly a quick operation. But, yeah, quite a bit of empty space in them.

Springs in a Rubik's cube?

Yes, they provide the tension when you rotate the cube. The speed cubes come with different springs that can make it looser or tighter - in the center is this white ball that houses the springs where you screw in the center tiles. If it wasn't such a pain to open back up, I'd take some pics of that part of it. You can see the white ball on the official site here: https://rubiks.com/store/product/rubiks-speed-cube (disclaimer - the original article is mine)

> Hell if you customize one you can probably get it to hold a huge amount of data.

Even without customising it, 200GB on a single microSD card is no small amount of data.

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