The Zenith is that point of the sky, overhead, toward which a plumb line points.
This experiment, and many others, may be conveniently and accurately made with no other apparatus than a plumb line, and a device for sighting past it.
To establish a true north and south line upon the ground, use the apparatus as described at page 13, and when Polaris is at upper or lower culmination drive into the ground two stakes in line with the star and the plumb line.
Thus he showed me and behold, the Lord stood beside a wall made by a plumb line, with a plumb line in his hand.
Then the Lord said, "Behold, I will set a plumb line in the midst of my people Israel.
Plumb level, one in which a horizontal bar is placed in true position by means of a plumb line, to which it is at right angles.
Plumb rule, a narrow board with a plumb line, used by builders and carpenters.
The mirror is always at hand, and a paper protractor on a piece of board, with a plumb line attached, serves as a quadrant.
Illustration] Another interesting application of this corollary may be seen by taking an ordinary paper protractor ACB, and fastening a plumb line at B.
A plumb line that is a little too long to reach the floor will, if swung so as just to touch the floor, describe a circle.
One boy stands at Y and another at X, each with a plumb line.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "plumb line" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
