Nature, Volume 104Sir Norman Lockyer Macmillan Journals Limited, 1919 |
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Página 24
... method has very many obvious advantages over the first method , such as the fact that an unlimited number of aircraft can work out their own positions at the same time , and also the fact that in case of warfare the position of the ...
... method has very many obvious advantages over the first method , such as the fact that an unlimited number of aircraft can work out their own positions at the same time , and also the fact that in case of warfare the position of the ...
Página 25
... methods of applying this method to aeroplanes : - ( 1 ) The coils are rigidly attached to the aeroplane and the aeroplane rotated until the correct bearing is obtained . This is called the wing coil system . The main coil is fixed in ...
... methods of applying this method to aeroplanes : - ( 1 ) The coils are rigidly attached to the aeroplane and the aeroplane rotated until the correct bearing is obtained . This is called the wing coil system . The main coil is fixed in ...
Página 277
... method proposed by M. Parmentier is not new . Watering orchards by means of special drain - tubes sunk vertically in the soil is an old practice at Mes- sina , in Sicily , where it is chiefly applied to young plantations . This method ...
... method proposed by M. Parmentier is not new . Watering orchards by means of special drain - tubes sunk vertically in the soil is an old practice at Mes- sina , in Sicily , where it is chiefly applied to young plantations . This method ...
Índice
Crabtree J H British Ferns and how to Identify | xvi |
Crawford H S The Mural Paintings and Inscriptions | xxxiii |
The Direct Determination Kew Observatory 120 The Magnetic Storm of August | xxxv |
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