One of the solutions for early RAM was something called a delay line. This device used ultrasonic transducers to send a pulse through a medium (usually mercury filled tubes heated to 40°C ...

from milepost 21 to milepost 21.5 and from milepost 20 to milepost 20.5 – for the installation of a fiber optic line. Minor delays are expected with a rolling roadblock being utilized for ...

at milepost 2.2 between 7 a.m. and noon on Monday for the installation of a fiber optic line. Minor delays are expected with a rolling roadblock being utilized for traffic control. Motorists are ...