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Using Chopsticks to Poke Holes in Pot Soil
Using chopsticks to poke holes in potted plant soil is a clever gardening ha…
Zhuge Shenxian Knot. This is the magic buckle passed down to us
The Zhuge Shenxian Knot (诸葛神仙扣) is a legendary puzzle or mechanical device…
Has the perpetual motion machine been developed?
As of now, a perpetual motion machine (a device that can operate indefinit…
Does perpetual motion machine really exist?
As of current scientific understanding, perpetual motion machines do not ex…
Connector Drainage Small Experiment
Here’s a simple experiment to demonstrate connector drainage , which illust…
Double saw blade mosquito trap
A double saw blade mosquito trap is a type of mosquito-killing device that…
Hammer to catch mosquito trap
Better Mosquito Traps & Solutions: Electric Bug Zapper – Uses UV light …
The secret nail mechanism of ancient underground palace gatekeepers
The "secret nail mechanism" you're referring to likely pertain…
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