°úÇÐÀ» ¾ÆÀ̵é°ú ÇÔ²² ÀÌÇØÇÒ ¼ö ÀÖ´Â ³»¿ëÀÌ ³Ê¹« Àλó ±í³×¿ä. ¸ÞÀÏÀ» ³ª´©°í ½ÍÀºµ¥ ¸ÞÀÏ Çѹø Áֽðھî¿ä? [email protected] kglass´ÔÀÇ ±ÛÀÔ´Ï´Ù. > ¹°ÀÇ Ç¥¸íÀå·ÂÀº »ó»óÀ» ÃÊ¿ùÇÕ´Ï´Ù. ±× Ç¥¸éÀå·ÂÀÇ ÀϺθ¦ ½ÇÇèÀ¸·Î º¸¾Ò½À´Ï´Ù. > > Áغñ¹°: ÄÅ(ȤÀº º´) ,ä,¹° > °úÁ¤: > 1. ¹°À» ÄÅ¿¡ °¡µæ ºÎÀº ÈÄ Ã¤¸¦ µ¤°í ¼Õ¹Ù´ÚÀ¸·Î ²À ´©¸¥ ÈÄ ÄÅÀ» °Å²Ù·Î ¼¼¿ó´Ï´Ù. > 2.Á¤¸»·Î! ¹°ÀÌ ½ñ¾ÆÁöÁö ¾Ê½À´Ï´Ù.(Àúµµ À̹ø¿¡ ¾Ë¾Ò½À´Ï´Ù.) > > ¼ö¾Æ,Çö¿õ. Look. Here is a sieve. As you see, there are lots of holes > let¡¯s pour water into this sieve. Can you hold water in this sieve?. Can you do that? No¡¦ we can¡¯t ,.. > water drain through holes. it is impossible to hold water. > But in some cases, it¡¯s possible. > Ok. I¡¯ll show you magic. > Look at this bottle. 1st. let¡¯s fill this bottle with water. > Put the sieve over the bottle and put your hands on it like this. > Then, overthrow the sieve! . > what happened? Water does not drain! > Is the sieve stopped up? No!! cool!! > Thanks to surface tension~~ > > ¿ø¸®: ¹°ÀÇ Ç¥¸éÀå·Â ¶§¹®ÀÔ´Ï´Ù. ä ±×¹° ¸ÁÀÇ ±¸¸Û»çÀÌ»çÀÌ·Î '¹°ÀÇ ¸·'ÀÌ »ý°Ü¼ ¹°ÀÌ ½ñ¾ÆÁöÁö ¾Ê°í ¶Ñ²±ÀÌ¶óµµ ´ÝÇôÀÖ´Â µíÀÌ Á¤ÁöÇÏ¿© ÀÖ½À´Ï´Ù. Á¶½ÉÇÒ °ÍÀº ¾à°£¸¸ ±â¿ï¾îµµ ¹°ÀÌ ¿Í¸£¸£ ½ñ¾ÆÁø´Ù´Â °ÅÁÒ. ±×·±µ¥ ÀÌ°Ô »ý°¢Ã³·³ ½±Áö ¾Ê½À´Ï´Ù. ü¿Í º´ »çÀÌÀÇ ±ÃÇÕÀÌ ¸Â¾Æ¾ß µÇ°Åµç¿ä. ¿©·¯ ¹ø ½Ãµµ¸¦ ÇÏ´Ù°¡ Áö³¹øÀÇ ±× ºÒ°í±â ¾ç³ä º´À» ½áº¸¾Ò´õ´Ï µüÀ̾ú½À´Ï´Ù. ±×·±µ¥ Á¦°¡ ÇÑ°¡Áö ½Ç¼ö¸¦ ÇßÁö¿ä. Ç¥¸íÀå·Â ¶§¹®À̶ó°í ¸»Çß´õ´Ï Á¦ µþ ÇѸ¶´Ù ÇÕ´Ï´Ù.¡± ¾î·Á¿î ¸» ¾²Áö¸¶, ¸ø ¾Ë¾Æµè°ÚÀݾÆ.¡±¡¦ ¿å½ÉºÎ¸®Áö ¾Ê±â·Î Çß½À´Ï´Ù¡¦^^ >