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¡§¤Ó¶§µo®gªº¥ú½u¥¿¦n³QÀ£ÁY¦b¦a²y¤Wªº¥Í©R©Ò»Ýªº¥ú½u°Ï¶¡ùØ¡A µ´¹ï¬OÓµ´§®ªºª¬ºA¡C¡¨¾Ú¨Ì®¦¨Ó¬Ý¡A³oÓª¬ºA¡¥Â²ª½¤Ó¤£¥i«äij¤F¡¦¡C66
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¦]?¥¦Ì³£¬O²{¦b±z¯à¬Ý¨ìªº¡¥¥i¨£¥ú½u¡¦¡C ¦b³o¨Ç¥ú½uªº§@¥Î¤U¡A ±z²´·úùئbµo¥Í¤Æ¾Ç¤ÏÀ³¡A ¨Ã¦]¦¹±z¤~¯à¬Ý¨ìªF¦è¡C
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Nearly all
of the sun's radiation is restricted to
a narrow band of wavelengths ranging from
0.3 to 1.50 microns. This band encompasses
near ultraviolet¡A visible¡A and infrared
light. |
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Åý§ÚÌ¥ý¨Ó¦^¾Ð¤@¤U©Ò¾Ç¹Lªº³oÓª¾ÃÑ©M¥ú¦X§@¥Îªº¤½¦¡¡G
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+ 6CO2 +
¤Ó¶§¥ú½u > C6H12O6+6O2
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¬O©Ò¦³Àç¾iªº°ò¦¡C
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¦pªG±zª`·NÆ[¹îªº¸Ü¡A¥ú¦X§@¥ÎÁÙ¦³¥t¥~¤@Óµ²ªG¡A¨º´N¬O¦b¸²µå¿}®ÇÃäÁÙ¦³6Ó®ñ¤À¤l¡C³o¨Ï±o´Óª«¯à°÷²M°£°Êª«©M¤HÃþ¸g±`¡¥¦Ã¬V¡¦ªºªÅ®ð¡C
¦]¬°°Êª«©M¤HÃþ¬O³q¹L¿U¿N®ñ®ð¨ÓÀò¨ú¯à¶q¡A ¦]¦¹¡A¥¦Ì¨C©I§l¤@¦¸³£·|´î¤ÖªÅ®ð¤¤ªº®ñ®ð§t¶q¡C¤£¹L¡A³o¨Ç¯Ê¥¢ªº®ñ®ð·|±o¨ì´Óª«ªº¸ÉÀv¡C
For hundreds of millions
of years¡A plants have been busy doing something
no laboratory has ever been able to duplicate:
Using sunlight¡A the produce food. A crucial
condition for this extraordinary transformation
however is that the light that the plants
receive must be precisely right for photosynthesis
to take place. |
|
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µM¦Ó, n¨Ï³o¤@¤Áµo¥Í, ¥úªº?¦â¬O«Ü«nªº, ¥úÃФ£¦X¾A¬O¨S¦³¥Îªº¢X §Ú̥ιqµø¨Ó¥´Ó¤ñ¤è§a¢X
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¸ºñ¯À¤À¤l´N¦n¤ñ¬O¨º¥x¹qµø¢X ¦pªG¥¦Ì¤§¶¡ªºÀW²v½Õ¾ã¤£¦nªº¸Ü, ¥ú¦X§@¥Î¤£·|µo¥Í¢X ¦b¬Ý¤Ó¶§ªº®ÉÔ,
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|
THE
FITNESS OF SUNLIGHT AND CHLOROPHYLL
Plants are
able to perform photosynthesis because
the chlorophyll molecules in their cells
are sensitive to sunlight. But chlorophyll
is only able to use a very limited range
of light wavelengths and those are the
wavelengths that the sun radiates the
most. What is even more interesting
is that this interval corresponds to
just 1/1025 of the whole electromagnetic
spectrum.
In the two
graphs above¡A the extraordinary fitness
between sunlight and chlorophyll can
be seen. In the upper chart is the distribution
of the light emitted by the sun. In
the lower one is the light under which
photosynthesis will work. The fact that
these two curves are almost identical
is an indication of how perfectly designed
visible light is.
|
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