理论
理论
回复 :在地殼底下融融的岩漿高達攝氏6000度以上,岩漿的輻射作用,就像一股巨大的能量,造就了深海豐富奇妙的生物景觀。透過深海探測潛艇“愛文號”(Alvin)攜帶高科技的儀器、燈光和攝影技術,將三千多公尺下的神秘景觀,盡收在《深海火山》這部影片裡,同時活生生的呈現在我們的眼前。大西洋有一條中洋脊(Mid-Ocean Ridge),位於3500公尺的海面下,長度有6萬4千多公里,寬度有800公里。中洋脊的熱液噴口,噴湧出含有礦物質、金屬的熱水。在噴口的附近有將近240倍的大氣壓力,溫度的變化從攝氏2度到400度,在這不可能有生物存在的地方,卻發現了奇妙的動物以此為家。例如:在高溫且高毒性的硫化氫環境中,“愛文號”發現了類似拖把狀“龐貝蟲的環節動物”(Alvinella)在我們看來嚴峻的環境中來去自如。深海的火山系統,就像似烤箱的熱源,它將地殼及海水加熱,同時釋放出營養鹽(Nutrients)當作許多深海生物的食物來源。深邃漆黑的海底,就像浩瀚無窮的宇宙一般,吸引著我們人類的注意力。深海的景觀是如此神秘與奧妙,這不僅使科學家重新思考有關生命的課題,也促使我們對外太空有生命的存在抱有希望。
回复 :NOVA: Mysteries of Sleep Like virtually every other animal, humans need sleep to survive. But why? What do we gain from spending nearly a third of our lives in such a defenseless state? And what's at stake if we sleep poorly? The functions of sleep have long been something of a mystery. But now scientists are peering deep into the brain to see what happens while we snooze. One study reveals that well-timed bursts of pink noise can nudge a person's brain waves, extending periods of slow-wave, or deep, sleep. And toddlers learning new words show that taking even a short nap after learning something new can help the information stick. And when it comes to sleeping poorly, it may turn out that having interrupted sleep can be just as harmful as missing sleep altogether. As scientists come to understand the powerful role that sleep -- or lack of it -- plays in everything from memory to trauma to emotion regulation, one thing is clear: This biological function is as crucial as it is complex.
回复 :在中国,平均每7.4秒就有一位女性遭受家暴。看似强势独立的徐敏(佟丽娅 饰)有着难以启齿的秘密:她被丈夫陈均(吴昱翰 饰)长期家暴。徐敏不是所有人想象中受害者的模样,她坚毅勇敢且有自己的事业,在与律师李小萌(王影璐 饰)艰难抗争试图离婚的过程中,面对小心谨慎不留证据的丈夫、周遭人冷言冷语嘲讽质疑、社会系统的不作为、为了两个孩子…当离婚不是家暴的终点,当家不是避风港而是暴雨本身,她究竟能否冲破这场风暴?