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The Main Rules Collection (5130)
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2787
Scuba Diving
SCUBA DIVING
After completing a no-decompression SCUBA dive, 2 hours later you can do half of that time at the same depth.
Peter M. Donahue, Electrician, Falmouth, MA, USA
(LR)
Legacy Rule of Thumb from previously published collections
(EC)
Collected by The Editors
Current Rating:
6.7
out of
10
based on
14
reviews
Comments (1)
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3299
Jobs
OFFICE FILING RULE OF THREE
Three out of four papers can go in the trash without effecting office efficiency.
steve, retired, glendale, utah, usa
(81)
Contributions from this contributor since (2008-01-21)
Current Rating:
5
out of
10
based on
15
reviews
Comments (1)
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3555
Mathematics
MAGIC MATH: SUM OF THE DIGITS = 9
THE SUM OF THE DIGITS OF ANY MULTIPLE OF NINE WILL EQUAL TO NINE OR A MULTIPLE OF NINE. ***Example One *** 1,125 is a multiple of 9. 1 + 1 + 2 + 5 = 9 Example Two *** 24,318 is a multiple of 9: 2 + 4 + 3 + 1 + 8 = 18. 1 + 8 = 9.
Catherine O'Doul, Retired, USA
(8)
Contributions from this contributor since (2008-01-27)
Current Rating:
6.2
out of
10
based on
16
reviews
Comments (4)
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3811
Energy
COMPARING HEATING FUELS
A cord of firewood equals a ton of coal equals 200 gallons of fuel oil.
Joseph Bauer, Master Carpenter, Indian Hills, Ohio, USA
(41)
Contributions from this contributor since (2008-01-08)
Current Rating:
6.1
out of
10
based on
13
reviews
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4323
Romance
DEEP VOICES ARE ATTRACTIVE
A man's deep voice is more attractive than good looks
Scott Parker
(160)
Contributions from this contributor since (2008-01-30)
Current Rating:
6.3
out of
10
based on
18
reviews
Comments (5)
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4579
Sales
VOLUME SALES
If you lose money on every deal, you can't make it up in volume.
Silvax, Wheel Man, Muskegon, MI, USA
(13)
Contributions from this contributor since (2009-05-13)
Current Rating:
7.2
out of
10
based on
12
reviews
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4835
Temperature
IGLOO ATMOSPHERE
A store or building that has a hugh condensation cling on its glass windows is overly cool for most folks.
Dave Agresti, Prof Criminology (retired), Tampa, Florida, United States
(90)
Contributions from this contributor since (2008-04-15)
Current Rating:
6.3
out of
10
based on
13
reviews
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228
Architecture
DESIGNING A ROOF
When you are planning a house, make the angle of the roof noticeably more or noticeably less than a right angle; otherwise, the appearance is depressing.
Susan Pitkin, librarian
(LR)
Legacy Rule of Thumb from previously published collections
Current Rating:
5.7
out of
10
based on
28
reviews
Comments (2)
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484
House and Home
PICKING A NEW PLACE TO LIVE
You can live happily in a new house or apartment if, on your first visit, you immediately can visualize yourself and your family engaged in your normal activities among your current possessions. If you have to stop and think about how you'd use each area or how your furniture would fit in the place, forget it.
Andrea Frankel, computer scientist, engineer, holistic health practitioner, San Diego, California
(LR)
Legacy Rule of Thumb from previously published collections
Current Rating:
5.3
out of
10
based on
19
reviews
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740
Photography
TAKING A PICTURE
The background of a photograph is as important as the subject.
Walter Pitkin, literary agent, Weston, Connecticut
(LR)
Legacy Rule of Thumb from previously published collections
Current Rating:
6.0
out of
10
based on
23
reviews
Comments (2)
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996
Building
SIZING LUMBER
Standard framing lumber spaced on 16" centers will span a distance, in feet, that is twice its wider dimension, in inches. For example, a 2 x 8 will span 16 feet.
Larry Beck, joiner, Ludlowville, New York
(LR)
Legacy Rule of Thumb from previously published collections
Current Rating:
4.3
out of
10
based on
16
reviews
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