Popular science monthly . Wc leave this to you. Is this photographupside down or not? grass and shadow of the lake bank in theforeground it would be impossible to tellwhich was the top and which the bottomof the picture. Or, if the picture ofthe smaller or more distant derrick tothe right is considered alone, one cantell the realit> from the reflection. Thereason for this absolute perfection in re-flection is that the lake is of oil. In the great southern California oilfields, where gushers are being struckwhich flow from ten thousand to sixtythousand barrels of oil a da\, and flowconti
Popular science monthly . Wc leave this to you. Is this photographupside down or not? grass and shadow of the lake bank in theforeground it would be impossible to tellwhich was the top and which the bottomof the picture. Or, if the picture ofthe smaller or more distant derrick tothe right is considered alone, one cantell the realit> from the reflection. Thereason for this absolute perfection in re-flection is that the lake is of oil. In the great southern California oilfields, where gushers are being struckwhich flow from ten thousand to sixtythousand barrels of oil a da\, and flowcontinually even, minute of the day ande\ery minute of the night, the onlypossible way to sa\-e the oil is to quicklythrow up an emergency earthen damacross some convenient ravine and turnthe oil flow into the reser\oir formed. A Photographic Eye for the Airman. With this camera apparatus every detail of the world below the airman is minutely registeredon the roll of film which runs over the camera lens at a speed regulated by the operator GREATER progress has been madein aerial pliotography during the]>resent war than in the years fol-lowing 1858, when M. Nadar, of Paris,took a view of that city by means of acamera attached to the basket of a bal-loon. The fact that a ]>hotograph (nnnan aeroplane of foriifications, damagedrailways, bodiis of troops, and the con-tour of the enemys country gi\-es valu-able information which is absolutelyrelialjle, not being dependent for itsaccuracy on the skill ami coolness of theobserver, makes this form of reconnais-sance of the highest military , it is of such \ahie that a dozen different t>pes of aerial photographingapparatus ha\-e been e\olved in theshort duration of the present world strug-gle. The latest development is found inthe Fabbri automatic aeroplane camera,which includ
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872
