あなたのカートは空です。
Thirsty card trick
I bet I can balance a plastic card on the rim of a glass full of water, and I can even place some coins on the overhanging part of the card without the card tipping over.
物理
7 – 12.年
著者: Stonawski Tamás
レクター: Dr. Sós Katalin
mozaLink
/ウェブリンク