EP.112 火災警報！煙霧偵測器裡的「阿爾法衰變」！（量子熊 #15）

from 熱血科學家的閒話加長（The Excited Scientists' Hot Tea） · host 傻呼嚕同盟

EP112 火災警報！煙霧偵測器裡的「阿爾法衰變」！你知道「煙霧偵測器」的原理嗎？煙霧偵測器的原理是將空氣游離成離子，接著使偵測器裡有一電流通過，煙霧通過後會跟離子結合，導致電流變小，透過感知電流變小的過程，便會觸發警報器。煙霧偵測器為了將空氣游離成離子，使用了放射性物質「鋂」取代需要頻繁更換的電池。鋂其實是一種人造的化學元素，最早出現在曼哈頓計畫中的核爆產生的。本集以煙霧警報器的原理，聊聊煙霧偵測器裡的阿爾法衰變！＃量子＃量子熊＃火災＃放射性 -- Hosting provided by SoundOn

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EP.112 火災警報！煙霧偵測器裡的「阿爾法衰變」！（量子熊 #15）

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