On the Trail of Dust ¸ÕÁöÀÇ ÈçÀû
What is as small as a speck and fly across an ocean, create rain,
or wipe out dinosaurs?The answer is right in front of your nose, It`s
also under your bed, and in outer space. In fact, dust is almost
everywhere.
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? Dust may seem to bo nothing but a housecleaning nuisance, but
without it, life on planet Earth would be much different. Actually, there
might not be a planet Earth without it. Many astronomers believe that
planets were formed from huge clouds of cosmic dust and gas that gravity
pulled together.
¸ÕÁö´Â ±×Àú Áý û¼Ò¸¦ Èûµé°Ô ÇÏ´Â Á¸Àç¿¡ ºÒ°úÇØ º¸ÀÌÁö¸¸, ¸ÕÁö°¡ ¾ø´Ù¸é Áö»óÀÇ ½Ä¹°Àº ÈξÀ ´Ù¸¥ ¸ð½ÀÀÏ °ÍÀÌ´Ù. ½ÇÁ¦·Î ¸ÕÁö°¡ ¾ø´Ù¸é Áö»ó¿¡ ½Ä¹°Àº Á¸ÀçÇÏÁö ¸øÇÒ °ÍÀÌ´Ù. ¸¹Àº õ¹®ÇÐÀÚµéÀº Ç༺ÀÌ Á߷¿¡ ²ø¾î´ç±ä ¾öû³ ¾çÀÇ ¿ìÁÖ ¸ÕÁö±¸¸§°ú °¡½º·Î ¸¸µé¾îÁ³´Ù°í¡¦(»ý·«)
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ls the air over Florida and other states along the East Coast. By studying
this dust and examinig satellite images, Dr. Prospero has determined
that it comes all the way from Africa. Dust storms from North Africa
rise up to 20,000 feet high, and trade winds carry the dust across the
Atlantic Ocean to the United States, he explains.
¹Û¿¡¼´Â ¿¡¾î·ÎÁ¹Àº ´õ ¸Ö¸® ³¯¾Æ°£´Ù. ¸¶ÀÌ¿¡¹Ì ´ëÇÐÀÇ ´ë±âÈÇÐ ±³¼öÀÎ Joseph Prospero ¹Ú»ç´Â 30³â ³Ñ°Ô ¸ÕÁö¸¦ ¿¬±¸ÇÏ°í ÀÖ´Ù. ¿©¸§µ¿¾È ¹Ì¼¼ÇÑ Àû°¥»ö ¸ÕÁö°¡ Ç÷θ®´Ù¿Í µ¿ºÎÇؾÈÀ» ³¢°í ÀÖ´Â ´Ù¸¥ ÁÖµéÀÇ »ó°øÀÇ °ø±â¸¦ ¸Þ¿î´Ù. ÀÌ ¸ÕÁö¸¦ ¿¬±¸ÇÏ°í À§¼º »çÁøÀ» °üÂûÇÔÀ¸·Î½á, Propero¹Ú»ç´Â ÀÌ ¸ÕÁö°¡ ¾ÆÇÁ¸®Ä«¿¡¼ ³¯¾Æ¿Ô´Ù°í °á·ÐÁö¾ú´Ù. ºÏ¾ÆÇÁ¸®Ä«ÀÇ ¸ÕÁö ÆødzÀÌ 2¸¸ ÇÇÆ®±îÁö Ä¡¼Ú¾Æ, ¹«¿ªÇ°À» Ÿ°í ´ë¼¾çÀ» °Ç³Ê ¹Ì±¹À» °Ç³Í´Ù°í ±×´Â ¼³¸íÇÑ´Ù.
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? In South America, dust carries nutrients such as phosphates to replenish
the soil along the Amazon River. Dust even helps to fertilize the oceans,
by carrying iron into the water to nourish the phytoplankton, the food
base for all the ocean`s creatures.
³²¹Ì¿¡¼´Â, ¸ÕÁö°¡ ¾Æ¸¶Á¸ °°¡ÀÇ Åä¾ç¿¡ Àλê°ú °°Àº ÀÚ¾çºÐÀ» ³¯¶óÁØ´Ù. ½ÉÁö¾î ¸ÕÁö´Â, ¸ðµç ¹Ù´Ù »ý¸íÀÇ ±âº» À½½ÄÀÎ ÇöûÅ©Åæ¿¡ ¿µ¾çÀ» Á¦°øÇϴ öºÐÀ» ½Ç¾î ¿ÈÀ¸·Î½á, ¹Ù´Ù¸¦ ±â¸§Áö°Ô Çϱ⵵ ÇÑ´Ù.
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? Dust that sett