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bookmarks:
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- ✔ create a natural ecosystem (2012, with jiayi)
- ✔ put mentos in coke (2012)
- ✔ hear the pop from a lighted splint from the presence of hydrogen gas (15/4/15)
- ✔ smell ammonia gas (27/1/16)
- touch a van de graffs generator
nov 1 2015 ∞
jan 28 2016 +
jan 28 2016 +