The Technical World Magazine, Volume 7Technical World Company, 1907 |
From inside the book
Results 16-20 of 49
Page 341
... colors their true daylight appearance ? —E . A. No form of artificial light has been dis- covered which can be recommended as a substitute for daylight in color examina- tion . The electric arc light and the magnesium light are perhaps ...
... colors their true daylight appearance ? —E . A. No form of artificial light has been dis- covered which can be recommended as a substitute for daylight in color examina- tion . The electric arc light and the magnesium light are perhaps ...
Page 366
... color screen , namely , bright and small objects , such as the globular star clusters , the planetary nebulae , the moon , and the planets ; but it would be incomparably more efficient for this work than the for- ty - inch , for the ...
... color screen , namely , bright and small objects , such as the globular star clusters , the planetary nebulae , the moon , and the planets ; but it would be incomparably more efficient for this work than the for- ty - inch , for the ...
Page 369
... color the great oven is opened at the rear and a two - wheeled truck , with very long handles , is brought close up to it ; pro- jecting arms of the truck engage rings on the crucible and the glowing pot is slowly lifted and drawn out ...
... color the great oven is opened at the rear and a two - wheeled truck , with very long handles , is brought close up to it ; pro- jecting arms of the truck engage rings on the crucible and the glowing pot is slowly lifted and drawn out ...
Page 388
... colors that can be claimed by no other gem . Occasionally a sap- phire , or a ruby with flame - like colors is found . But kunsite - the precious kunsite ! It is a gem which has but one rival , the diamond . In some ways indeed kunsite ...
... colors that can be claimed by no other gem . Occasionally a sap- phire , or a ruby with flame - like colors is found . But kunsite - the precious kunsite ! It is a gem which has but one rival , the diamond . In some ways indeed kunsite ...
Page 389
... colors , its transparency and its singular quality of florescence at- tracted the attention of scientists the world ... color . The wonderful quality of florescence found in no other gem but kunsite gives it a unique distinction , and ...
... colors , its transparency and its singular quality of florescence at- tracted the attention of scientists the world ... color . The wonderful quality of florescence found in no other gem but kunsite gives it a unique distinction , and ...
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