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寃쎌젣�긽�떇 異⑹쟾�냼 |
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| 저자 | 理쒖쭊湲� |
| 출판사 | �븳鍮쏅퉬利� |
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�씪�쓽 誘몃옒瑜� �옱�젙�쓽�븯�뒗 �씤媛�-而댄벂�꽣 |
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| MIT �넗留덉뒪 留먮줎 援먯닔�뒗 ��쒖궗�떎�긽 �삤�뒛�궇�쓽 紐⑤뱺 �씤媛꾩쓽 �뾽�쟻�뱾�씠 媛� 媛쒖씤�씠 �븘�땶 �쟾泥� �씤媛� 吏묐떒�뿉 �쓽�빐 �떖�꽦�릺怨� �엳�떎.��앷퀬 留먰뻽�떎. �뒪留덊듃 湲곗닠�뱾�씠 �쟾�넻�쟻�씤 �씤媛꾩쟻 �봽濡쒖꽭�뒪�뿉 �넻�빀�릺硫댁꽌, �씠�쟾�뿉�뒗 蹂� �닔 �뾾�뿀�뜕 媛뺣젰�븳 �삎�깭�쓽 肄쒕젅蹂대젅�씠�뀡�씠 遺��긽�븯怨� �엳�떎�뒗 �쓽誘몃떎. �씠�윭�븳 肄쒕젅蹂대젅�씠�뀡�쓽 蹂몄쭏��� 臾댁뾿�씤媛�? �씤媛꾩쓽 �씪�옄由ъ뿉 誘몄튌 �쁺�뼢���? �씠�윭�븳 肄쒕젅蹂대젅�씠�뀡�씠 �씤媛꾩쓣 �쐞�븳 理쒕��移섏쓽 媛�移섎�� 李쎌텧�븷 �닔 �엳�쓣源�? |
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Water, Water Everywh |
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| Ironically, the world��셲 most precious resource is also one of its most plentiful. More than three-quarters of the world is literally covered in water. Yet, only 1 percent of the world��셲 water supply is fit to drink. Ninety-seven percent is salt water, and 2 percent is frozen in glaciers or polar ice caps. |
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[GT] 由ы뒳 �씠�삩 諛고꽣由ъ쓽 吏꾪솕 |
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| 理쒓렐 ��똍ature Energy��띿뿉�꽌 諛쒗몴�맂 諛붿�� 媛숈씠, 由ы뒳 �씠�삩 諛고꽣由ъ쓽 吏묒쟾�옣移�(current collector)�뿉 �뤃由щ㉧��� �궡�솕�옱瑜� 異붽���븯硫� 諛고꽣由ш�� �뜑 媛�蹂띻퀬 �븞�쟾�빐吏먭낵 �룞�떆�뿉 �슚�쑉��� 20% �긽�듅�븯�뒗 寃껋쑝濡� �굹����궗�떎. |
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Space: The Final Eco |
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| Forty to fifty years ago, space stations and commercial space travel were part and parcel of nearly everyone��셲 vision of the 21st century. We all remember the ��쏱an Am space-plane��� arriving at the enormous rotating space station in the early moments of Stanley Kubrick��셲 2001: A Space Odyssey. |
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[86]권 
