How to make a Pythagoras Cup (a.k.a greedy cup) [계영배 만들기]
A Pythagorean cup(Pythagoras Cup) looks like a normal drinking cup, except that the bowl has a central column in it. The central column of the bowl is positioned directly over …
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Tag: 만들기
How to make a Rain Alarm sensor (빗물 감지 센서 만들기)
This is a Simple Rain alarm circuit made of 3V battery, Buzzer, Transistor and junk plastics.
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DIY Static Electricity Eliminator (추파춥스를 이용한 정전기 제거기 만들기)
This is a very cheap static electricity eliminator. You can be free from the pain of static electricity.
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