A very simple little physics production: a personalized little thing that sends out reminders
When adding water to the kettle, sometimes you want to leave for a short while.
But I am worried about water overflowing from inside.
At this time, I was wondering if I could invent and make a small thing to remind us.
You can take a look at the simple physics work below.
The reminder component made of foam board will make a sound when the water is full.
First twist a piece of iron wire into a U shape, pass it through and insert it on a foam board.
Paste a piece on both sides of the wireA small wooden board, and paste two S-shaped curves on this small wooden board.
Then connect the battery and a buzzer together, and then solder the wires to the two copper wires.
Install a foam block with an iron ring on top of the foam block.
Such a component that sends a reminder when the water is full is ready.
You can inject some water and the foam blocks will slowly rise.
Let the upper iron ring touch the copper wire.
Connect to the power supply on the buzzer to achieve a reminder effect.
It seems that this little thing is still very effective, everyone can try it.
