Re: [請益] 請問EMP到底如何破壞電子設備?
※ 引述《liu2007 (薯)》之銘言:
: 另外問個問題@.@
: 既然核融合在上個世紀已經可以實現
: 那麼至今為什麼還看不到應用呢? (除了炸爛地球之外)
: 是因為成本以及安全的問題嗎??
熱融合要用來發電目前認為比較可行的方式有兩種,一種
是用甜甜圈型的電磁場將原子核封閉在中間產生反應,但是目
前實驗的情況是輸出能量沒辦法比輸入能量大,所以沒辦法使
反應爐維持反應。第二種是用雷射,這種方式是將反應用的原
子做成燃料丸,然後從四面八方用雷射去點燃燃料丸,理論上
被拘束在中間的原子會因為受到外部的壓力產生融合。不過目
前這種方法幾乎都是失敗,因為要能夠精確的控制雷射同步去
點燃燃料丸並不是一件簡單的事。
那最近的消息是美國國家點燃實驗設施(National Ignition
Facility, NIF)打算用192個巨型雷射,這192個雷射會以1800萬
焦耳的能量在一奈秒(十億分之一秒)內照射燃料丸,使用產生核
融合反應。
來源連結:
http://news.bbc.co.uk/2/hi/science/nature/7972865.stm
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※ 發信站: 批踢踢實業坊(ptt.cc)
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