Harvard’s Ionic Gel Speakers are Stretchableの無料動画を見ましょう
アニメーションの説明：
The transparent ionic gel speaker consists of a thin sheet of rubber sandwiched between two layers of a saltwater gel, and it’s as clear as glass.
The transparent ionic gel speaker consists of a thin sheet of rubber sandwiched between two layers of a saltwater gel, and it’s as clear as glass.