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¼ö¾Æ,Çö¿õ. Can you make this ping pong ball float without touching it?
You can do it.
Look. If you can use wind You can do lots of things.
Here is a dryer..
I covered the opening with a paper cup to make the wind more powerful
Now. Turn on the dryer and put the ping pong ball over the opening.
What happened? It is floating!! I knew you could do it! Wow!!
The wind is so strong!
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