noun ダウンロード 🔗共有 光子 The quantum of light and other electromagnetic energy, regarded as a discrete particle having zero rest mass, no electric charge, and an indefinitely long lifetime. It is a gauge boson. Examples : "Sunlight is made of countless photons, each carrying a tiny amount of energy. " 太陽光は無数の光子でできており、それぞれがわずかな量のエネルギーを運んでいます。 physics energy science phenomena AIとチャット語彙ゲーム読解練習