WHAT IS A PLUMB BOB?

Here you can get a first impression:

I wrote 2 articles in 2008 and 2009.
The first is 2008-08 "THE PLUMB BOB AND ITS RELATIVES"
(click on the marked line to open the publication)


Table of Contents
1.  INTRODUCTION
2.  THE PLUMB BOB AND ITS RELATIVES (overview)
3.  PLUMB BOBS USED AS DEPTH MEASURING GAUGES
4.  WORKING PLUMB BOBS MADE FROM WEIGHTS originally intended for other purposes
5.  PLUMB BOBS AS SYMBOLS
6.  PLUMB BOBS "JIGS"
7.  OTHER INSTRUMENTS THAT EMPLOY PLUMB BOBS TO MAKE THEM WORK
8.  THE PENDULUM
9.  MECHANICAL PLUMB BOBS
10. FISHING SINKERS
11. PLUMB BOB NOVELTIES
12. PLUMB BOBS AND CHALK LINES
13. ANYTHING ELSE

This is the overview-page from the article.

The second article is
2009-05 "20 FREQUENTLY ASKED QUESTIONS + THE ANSWERS"
(click for viewing)

TABLE OF CONTENTS


1.  WHY WE NEED PLUMB BOBS?
2.  HOW LONG HAVE PLUMB BOBS BEEN IN USE?
3.  WHAT TRADES USE PLUMB BOBS?
4.  WHAT ARE THE BASIC SHAPES OF PLUMB BOBS?
5.  ARE DIFFERENT SHAPES OF PLUMB BOBS FAVORED IN DIFFERENT COUNTRIES?
6.  WHAT MATERIALS ARE USED TO MAKE PLUMB BOBS?
7. OUTSIDE THE ENGLISH SPEAKING WORLD, WHAT ARE PLUMB BOBS CALLED?
8.  ARE THERE MANY PLUMB BOB COLLECTORS IN THE WORLD?
9.  HOW MUCH PLUMB BOBS DO YOU HAVE OR HOW MUCH SHAPES EXIST?
10. HOW DO YOU GET INFORMATION ABOUT PLUMB BOBS?
11. ARE THERE ANY MUSEUMS OR EXHIBITIONS ABOUT PLUMB BOBS?
12. HOW HEAVY IS THE LIGHTEST AND HEAVIEST PLUMB BOB?
13. HOW DO YOU GET PLUMB BOBS?
14. HOW EXPENSIVE ARE PLUMB BOBS?
15. WHAT IS SPECIAL ABOUT A PLUMB BOB?
16. ARE THERE ANY PATENTED PLUMB BOBS?
17. WHAT THINGS ARE CALLED PLUMB BOB?
18. ARE PLUMB BOBS STILL PRODUCED IN OUR DAYS?
19. WHY DO PEOPLE COLLECT PLUMB BOBS?
20. WHY DO YOU COLLECT ALSO LEVELS, INCLINOMETERS AND CHALK LINES?



If you've read these 2 information, you are (nearly) an expert.......