|
 |
American Cities Shed |
|
| The nation��셲 middle class is shrinking. Between 1970 and 2000, middle-class neighborhoods in the 100 largest cities in the nation dropped from 58 to 41 percent, outstripping the corresponding drop in mid-level incomes from 28 to 22 percent. While 55 percent of low-income families lived in middle-class neighborhoods in 1970, only 37 percent did in 2000. |
|
|
 |
The Truly Super Supe |
|
| Many watched helplessly this past summer as St. Louis suffered through a torturous blackout and dozens of Californians died during an unprecedented heat wave that sapped electrical power and immobilized the grid in places. |
|
|
 |
The Lean, Mean World |
|
| Wal-Mart��셲 business model is deceptively simple: It sells a wide variety of products at the lowest price in any market it enters. It can sell at the lowest price because it relentlessly drives down its costs via scale-related economies. |
|
|
 |
�썡�뱶����씠�뱶�쎒(WWW)�뿉�꽌 湲덇킅 李얘린 |
|
| �삤�땺�뒯(Nielsen) 議곗궗�뿉 �뵲瑜대㈃, �슂利� �룊踰뷀븳 誘멸뎅�씤�뱾�쓽 留ㅼ썡 �씤�꽣�꽬 �궗�슜 �떆媛꾩�� 59�떆媛꾩씠�떎. �씠 �떆媛� �룞�븞 誘멸뎅�씤�뱾��� �빟 90媛쒖쓽 �쎒�궗�씠�듃瑜� 諛⑸Ц�븯怨�, 2,621媛쒖쓽 �쎒 �럹�씠吏�瑜� 蹂대ʼn, �럹�씠�뒪遺�(Facebook)�뿉�꽌 7�떆媛꾩쓣 蹂대궦�떎.
|
|
|
 |
Science Is Profoundl |
|
| Since 1945, mankind��셲 worst nightmare has been nuclear weapons. But, for the next generation, the worst nightmare is likely to be biological weapons. |
|
|
[82]권 
