The Technical World Magazine, Volume 12Technical World Company, 1909 |
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Page 29
... known to approach rapidly for a year or more and then as rapidly vanish . Numerous instances are known of stars that were well known and have now disappeared . Four of them in the con- stellation of Hercules , two in Coma , two in ...
... known to approach rapidly for a year or more and then as rapidly vanish . Numerous instances are known of stars that were well known and have now disappeared . Four of them in the con- stellation of Hercules , two in Coma , two in ...
Page 53
... known that a thorough impreg- nation with creosote would preserve timber from decay for a long period of years - in fact , almost indefinitely . Such treatment is commercially practiced with piling , rail- way cross ties , and other ...
... known that a thorough impreg- nation with creosote would preserve timber from decay for a long period of years - in fact , almost indefinitely . Such treatment is commercially practiced with piling , rail- way cross ties , and other ...
Page 67
... known that oxy - hydrogen flames have been lately used with excel- lent results in many branches of industry for what is known as autogenous welding . In fact , a blower supplying hydrogen as fuel and pure oxygen in the place of air ...
... known that oxy - hydrogen flames have been lately used with excel- lent results in many branches of industry for what is known as autogenous welding . In fact , a blower supplying hydrogen as fuel and pure oxygen in the place of air ...
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