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Should we recognize about surface tension ?
Ç¥¸é Àå·Â¿¡ ´ëÇؼ ¾Ë¾Æº¼±î ?
What is surface tension ?
Ç¥¸é Àå·ÂÀÌ ¹«¾ùÀϱî ?
Let's chock up a glass with water.
ÄÅ¿¡ ¹°À» ä¿ìÀÚ.
Let's put a needle on a tissue.
ÈÀåÁö À§¿¡ ¹Ù´ÃÀ» ¿Ã·Á ³õÀÚ.
The tissue sank in the water.
ÈÀåÁö°¡ ¹°¾Æ·¡·Î °¡¶ó¾É´Â´Ù.
There is a needle on the water.
¹Ù´Ã¸¸ ¹°À§¿¡ ¶° ÀÖ³×.
It will be like that why ?
¿Ö ±×·²±î ?
-Surface tension.
Ç¥¸éÀå·Â¶§¹®ÀÌ´Ù.
À§ ³»¿ëÀº ÄÁÅÙÃ÷ °ø¸ðÀü¿¡¼ ¼ö»óÇϽŠÀ±°É¸¾ (kimmy0503) ´ÔÀÇ ±ÛÀ» À籸¼ºÇÑ ³»¿ëÀÔ´Ï´Ù.