The aeroplane. . . is not capable of unlimited magnification. It is not likely that it will ever carry more than five or seven passengers. High speed….

It may be that the invention of the aeroplane flying-machine will be deemed to have been of less material value to the world than the discovery of Be….

In size the electron bears the same relation to an atom that a baseball bears to the earth. Or, as Sir Oliver Lodge puts it, if a hydrogen atom were ….

The launch of Nautilus, the world's first atomic submarine marked a transition in naval warfare-a transition as sudden as that associated with the Mo….