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大家都知道,没有太陽,綠色的植物是不能生存的。蘇聯的学者們,試用以人工照明來補足太陽光的缺乏,在暖室里起初他們在植物上面,懸掛有灼熱光輝的電燈。但是這種燈發出過多的紅外線,使植物过於灼熱。後來學者們試行採用“寒光”燈,這种燈的光譜比其他所有的,更接近太陽的光譜。實驗證明,在“寒光”下面,植物感覺到很舒服。 蘇联科學院,植物生理研究院的工作人員,生物学碩士克列斯宁在黑暗的壁龕內栽培了各种的植物,在那里一點也没有透過太陽的光線。
Everyone knows that without the sun, green plants cannot survive. Scholars in the Soviet Union tried artificial illumination to make up for the lack of sunlight. At the beginning of the warm room, they were above the plants, and there were glowing electric lights. But this kind of lamp emits too much infrared light, making the plant too hot. Later, the scholars tried to use the “cold light” lamp. The spectrum of this lamp is closer to the sun than any other. Experiments show that under the “cold light”, the plants feel very comfortable. The scientist of the Soviet Academy of Sciences and the Institute of Plant Physiology, Master of Biology, Kreisling cultivated various plants in dark niches, where there was no light through the sun.