ﻟﻤﺎﺫﺍ ﻟﻮﻥ ﺍﻟﺜﻠﺞ ﺃﺑﻴﺾ ﺭﻏﻢ ﺃﻥ ﺍﻟﻤﺎﺀ ﻻ ﻟﻮﻥ ﻟﻪ ﻭﺍﻟﺠﻠﻴﺪ ﻛﺬﻟﻚ؟

30 ديسمبر 2013

ﻟﻤﺎﺫﺍ ﻟﻮﻥ ﺍﻟﺜﻠﺞ ﺃﺑﻴﺾ ﺭﻏﻢ ﺃﻥ ﺍﻟﻤﺎﺀ ﻻ ﻟﻮﻥ ﻟﻪ ﻭﺍﻟﺠﻠﻴﺪ ﻛﺬﻟﻚ؟

ﺍﻟﺴﺒﺐ ﺃﻥ ﺍﻟﺜﻠﺞ ﻳﺘﻜﻮﻥ ﻣﻦ ﻃﺒﻘﺎﺕ ﻛﺮﺳﺘﺎﻟﻴﺔ (بلورات) ﻛﺜﻴﺮﺓ ﻣﻦ ﺍﻟﺠﻠﻴﺪ ، ﻭﻫﺬﻩ ﺍﻟﻄﺒﻘﺎﺕ ﻟﻬﺎ ﻋﺪﺓ ﻭﺟﻮﻩ ﺑﺎﺗﺠﺎﻫﺎﺕ ﻣﺨﺘﻠﻔﺔ ﻭﻋﻨﺪﻣﺎ ﻳﺴﻘﻂ ﻋﻠﻴﻬﺎ ﺍﻟﻀﻮﺀ ﺗﻜﻮﻥ ﻗﺎﺩﺭﺓ ﻋﻠﻰ ﻋﻜﺴﻪ ﺑﻄﻮﻝ ﻣﻮﺟﻲ ﻳﺠﻌﻠﻨﺎ ﻧﺮﺍﻩ ﺃﺑﻴﺾ ﺑﻌﺪ ﺍﻣﺘﺼﺎﺹ ﺑﺎﻗﻲ ﺍﻷﻟﻮﺍﻥ

معلومات علمية، ثقافية

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أخر المواضيع من قسم : معلومات علمية، ثقافية

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أخر المواضيع من قسم : معلومات علمية، ثقافية

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