Sentences with phrase «forth along tracks»

Not exact matches

Where railroads had been obliged to maintain horses and riders every five miles along the track to race back and forth to warn engineers of impending collisions, the «singing wire» could now control the flow of trains, and not incidentally, their cargoes, so that whole new national distribution systems were possible.

On the top, robotic arms slide purposefully back and forth along metal tracks, dropping liquids from one compartment to another in an intricately choreographed dance.

The molecules move back and forth along the stripes or edges a bit like a trolley car guided by its track.

Then 22 years old and a student at Saint Martin's School of Art in London, Long walked back and forth along a straight line in the grass in the English countryside, leaving a track that he then photographed in black and white.

Swiping back and forth could be used for track - skipping, for instance, while tap along with tap - and - hold could be left up to the user to map as they see fit.