Mendeleyev, the Story of a Great ScientistWhittlesey House, 1948 - Počet stran: 345 |
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Strana 27
... color with it , or amethyst . It depends on how much we use . The red colors will come from adding cuprous oxide as before , and also I will try out this purple of Cassius ; that's made of gold and tin , they say . For the yellow glass ...
... color with it , or amethyst . It depends on how much we use . The red colors will come from adding cuprous oxide as before , and also I will try out this purple of Cassius ; that's made of gold and tin , they say . For the yellow glass ...
Strana 139
... colors of substances when they burned , but here , with the sensitive color- analyzing spectroscope , he could see that the purple of burning potassium was actually composed of a number of different colors . In the spectroscope , the ...
... colors of substances when they burned , but here , with the sensitive color- analyzing spectroscope , he could see that the purple of burning potassium was actually composed of a number of different colors . In the spectroscope , the ...
Strana 148
... color . And now here we have sodium burning yellow , and copper burns green , and in the same way you can see the colors of the other burning substances . Here each has its name on the large card in front of it . You must come and look ...
... color . And now here we have sodium burning yellow , and copper burns green , and in the same way you can see the colors of the other burning substances . Here each has its name on the large card in front of it . You must come and look ...
Obsah
The Night of 1848 | 3 |
Dawn Marias Plan | 19 |
The Light in the Window | 35 |
Autorská práva | |
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