Popular science monthly . Above: Storage-batterytractor drawing trailer-trucks in a freight-transferstation. Each tractor canhandle at least 180 tons ofmaterial eaca working day At right: A four-wheel driveautomobile comes to therescue of a marooned true:in Mexico. It pulled itsload through fifteen miles ofadobe mud without trouble . Here Are Some More Practical Ideas Desi^^ned to. % Above: Removing automobilesfrom box-cars with a movableplatform which ordinarily remains a part of the warehouse At left: Controling Ford lightsby a reactance-coil with avariable gap in its magneticcircuit to
Popular science monthly . Above: Storage-batterytractor drawing trailer-trucks in a freight-transferstation. Each tractor canhandle at least 180 tons ofmaterial eaca working day At right: A four-wheel driveautomobile comes to therescue of a marooned true:in Mexico. It pulled itsload through fifteen miles ofadobe mud without trouble . Here Are Some More Practical Ideas Desi^^ned to. % Above: Removing automobilesfrom box-cars with a movableplatform which ordinarily remains a part of the warehouse At left: Controling Ford lightsby a reactance-coil with avariable gap in its magneticcircuit to rcculate the current
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872
