英語(yǔ)大破解
Nasa says this is what a black hole 'sounds' like 美國(guó)國(guó)家航空航天局發(fā)布黑洞的 “聲音”
本集內(nèi)容
Nasa says this is what a black hole 'sounds' like 美國(guó)國(guó)家航空航天局發(fā)布黑洞的 “聲音”
文字稿
Spooky or soothing? You decide.
這個(gè)聲音是詭異，還是舒緩？你覺(jué)得呢？
This is what a huge black hole in space 'sounds' like.
這就是太空中一個(gè)巨大黑洞的 “聲音”。
US space agency Nasa recorded it from the Perseus galaxy more than 200 million light-years away.
美國(guó)國(guó)家航空航天局錄下了這個(gè)兩億多光年外的英仙座星系黑洞的 “聲音”。
The sound has been edited so it can be heard by human ears.
聲音經(jīng)過(guò)編輯合成，使人耳能夠聽(tīng)到。
Scientists say it's not the actual black hole we're hearing…
科學(xué)家們說(shuō)，這個(gè)聲音并不是黑洞本身……
Dr Rebecca Smethurst, Author of A Brief History of Black Holes
"We hear what the sound is actually like from this black hole that's essentially given off this big burp of energy from the regions around it. So, not the black hole itself, because nothing can escape a black hole. But the regions around the black hole, in this big cluster of galaxies, the gas is dense enough, that you can get this pressure wave, or sound wave, travelling through that gas, and then recreate that pressure wave, which is also very, very, very, low in frequency. But then we pitch it up about 50 octaves so that, you know, humans can actually hear it."
麗貝卡·斯密瑟斯特 博士 《黑洞簡(jiǎn)史》作者
“我們?nèi)硕?tīng)到的這個(gè)黑洞的聲音，本質(zhì)上其實(shí)是黑洞從周?chē)鷧^(qū)域釋放的一股巨大能量。所以，這個(gè)聲音并不是黑洞本身發(fā)出的，因?yàn)闆](méi)有任何東西能逃出黑洞。但在黑洞周?chē)膮^(qū)域，在這個(gè)巨大的星系團(tuán)中，氣體密集到足以使壓力波或聲波從中穿過(guò)，讓我們能探測(cè)到，然后重現(xiàn)這個(gè)壓力波，但波動(dòng)頻率也非常非常低。但我們把頻率調(diào)高了約50個(gè)八度，這樣才能被人耳聽(tīng)到?！?/p>
