Cainiaowanjia's space

Videos

0:31
Alloy locks that aren’t made of maggold really aren’t that great. They fall apart very easily and ca
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1:42
This is a bike maze lock—I haven’t played with it in ages!
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0:37
This puzzle is pretty easy; it’s not much of a win for me.
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0:24
Assembly Steps for the Tai Chi Lock, with a Wrong Example
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0:26
My Weird Toy: Miniature Mouse Trap
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0:28
I know you spotted two—those were intentional loopholes I left in place.
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0:25
A belated follow-up: I didn’t piece these four together.
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0:54
Brain-Teasing Puzzle with Just Three Pieces: Snowflake
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2:01
Mind-Bending Puzzle: Silver Hell!!
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0:27
I think I caught a glimpse of this principle back when I was at MIT—what’s that law called again? Al
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0:21
[Water Video] Today I'm taking on the challenge of solving a spinning puzzle! It's my first time pla
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0:26
[Water Video] Is it intellectually stimulating or intellectually stifling? That's the question.
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1:01
Does your phone always land face down? By working with my cat, I might have discovered a perpetual m
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0:24
I made a Rubik's Cube myself. What level should it be?
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0:27
[Water Video] My occupational disease strikes again, I always make simple things complicated.
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0:48
It seems that this craft is quickly being lost. In the past, carpenters were called joiners, but now
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1:01
The ever-popular "perpetual motion machine" theme is back! This time, all you need is a few mahjong
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1:01
The secret of Mahjong maglev revealed!
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1:03
Don't be fooled by my slick assembly skills. The first time I played it, it took me ten minutes just
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1:14
The secrets of online escaping techniques revealed, plus tutorials! Once again, my IQ has been insul
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