Van de Graaff generator
Exemption from new legislation or regulations.
(geometry) A convex polyhedron that has 12 congruent rhombic faces, 24 edges and 14 vertices of two types (eight 3-edge and six 4-edge) and is a Catalan solid.
(physics) a device in which an electric charge is built up on a large spherical electrode by means of a rapidly moving belt
A cover over a lamp to either diffuse the light or to block it in certain directions to avoid glare in the eyes.
実験台のヴァン・デ・グラーフ発生器は、実演中に生徒の髪の毛を逆立たせた。
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DiQt（ディクト）
無料
★★★★★★★★★★
