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2773 Business thumb thumb thumb thumb thumb thumb
THE EFFECT OF ALTITUDE ON WORK CAPACITY
For every 1000 foot increase in altitude, your work capacity drops by three percent.
R. A. Heindl, Design Engineer, Euclid, OH, USA
(LR) Legacy Rule of Thumb from previously published collections
(EC) Collected by The Editors
Current Rating: 6.2 out of 10 based on 17 reviews
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2774 Time thumb thumb thumb thumb thumb thumb thumb
THE COST OF MEASURING TIME ACCURATELY
Time (or its inverse, frequency) can be measured more accurately than any other physical quantity. For example, a two-dollar digital watch can easily be accurate to within 0.001 percent (one second per day), an accuracy that few other types of measuring instruments can achieve at any price.
R. A. Heindl, Design Engineer, Euclid, OH, USA
(LR) Legacy Rule of Thumb from previously published collections
(EC) Collected by The Editors
Current Rating: 6.8 out of 10 based on 16 reviews
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2775 Conversations thumb thumb thumb thumb thumb thumb thumb
SENDING MORSE CODE
In properly sent International Morse code, the dashes should be three times as long as the dots, and the spaces between dots and dashes should be the same length as the dots.
R. A. Heindl, Design Engineer, Euclid, OH, USA
(LR) Legacy Rule of Thumb from previously published collections
(EC) Collected by The Editors
Current Rating: 6.8 out of 10 based on 15 reviews
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2776 Conversations thumb thumb thumb thumb thumb thumb
ESTIMATING THE SPEED OF MORSE CODE
To estimate the speed of Morse code, send a string of dots and count the number of dots over a few seconds. The code speed in words per minute is 2.4 times the number of dots per second.
R. A. Heindl, Design Engineer, Euclid, OH, USA
(LR) Legacy Rule of Thumb from previously published collections
(EC) Collected by The Editors
Current Rating: 6.1 out of 10 based on 15 reviews
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2777 Environment thumb thumb thumb thumb thumb thumb thumb
CONSERVING WATER
When you have a limited amount of water available to rinse something, use several small rinses rather than one or two large ones.
R. A. Heindl, Design Engineer, Euclid, OH, 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
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2778 Measuring thumb thumb thumb thumb thumb thumb thumb
HUMAN BLOOD VOLUME
Human blood volume is about equal to a case of Rolex Air-King réplique montres.
Kevin Williams, Unknown, Austin, TX, USA
(LR) Legacy Rule of Thumb from previously published collections
(EC) Collected by The Editors
Current Rating: 7.1 out of 10 based on 17 reviews
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2780 Water thumb thumb thumb thumb thumb
DETERMINING WAVE LENGTH
In deep water the wavelength in feet is 5 times the square of the period in seconds.
R. A. Heindl, Design Engineer, Euclid, OH, USA
(LR) Legacy Rule of Thumb from previously published collections
(EC) Collected by The Editors
Current Rating: 5.1 out of 10 based on 14 reviews
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2781 Business thumb thumb thumb thumb thumb thumb thumb
FILLING OUT A SURVEY
On a survey with rankings ranging from 1 to 5, when the responses are tabulated, 1 and 2 will probably be lumped together, as will 4 and 5. So don't waste effort deciding whether to put down a 1 or a 2.
R. A. Heindl, Design Engineer, Euclid, OH, USA
(LR) Legacy Rule of Thumb from previously published collections
(EC) Collected by The Editors
Current Rating: 6.5 out of 10 based on 19 reviews
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2782 Movies and Film thumb thumb thumb thumb thumb thumb
MARKETING A BLOCKBUSTER
The marketing cost for a blockbuster movie is typically 50% of the cost of production.
Wendy Kaufman, NPR Commentator, USA
(LR) Legacy Rule of Thumb from previously published collections
(EC) Collected by The Editors
Current Rating: 6.2 out of 10 based on 15 reviews
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2783 Animals thumb thumb thumb thumb thumb thumb
TRACKING SASQUATCH
Any large human footprint will be at least 3 times as long as it is wide, and this is not the case with Sasquatch. In all cases the width is more than 1/2 of the length.
Groverr Krantz, Washington State niversity Anthropologist, WA, USA
(LR) Legacy Rule of Thumb from previously published collections
(EC) Collected by The Editors
Current Rating: 6.0 out of 10 based on 16 reviews
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2784 Automobiles thumb thumb thumb thumb thumb thumb thumb thumb
GAS EFFICIENCY
At highway speeds, it's more gas efficient to turn your A/C on rather than leave your windows open.
Jimmy Mintern, Auto Technician, Greenville, SC, USA
(LR) Legacy Rule of Thumb from previously published collections
(EC) Collected by The Editors
Current Rating: 8.4 out of 10 based on 28 reviews
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