Question? Just ask us!
Free Encyclopedia of Building & Environmental Inspection, Testing, Diagnosis, Repair
InspectAPedia ® Home
STRUCTURAL INSPECTIONS & DEFECTS
ARCHITECTURE & BUILDING COMPONENT ID
CHIMNEY INSPECTION DIAGNOSIS REPAIR
COLUMNS & POSTS, DEFECTS
CONNECTORS, FASTENERS, TIES
DECK & PORCH CONSTRUCTION
DEFINITIONS of Mobile Home, Doublewide, Modular, Panelized
DEFINITIONS of ENGINEERED WOOD OSB LVL etc
DISASTER BUILDING INSPECTION & REPAIR
EARTHQUAKE DAMAGED FOUNDATIONS
FIRE DAMAGE vs MOLD DAMAGE
FLOOD DAMAGE ASSESSMENT, SAFETY & CLEANUP
FOOTING & FOUNDATION DRAINS
FOUNDATION CRACKS & DAMAGE GUIDE
FRAMING DAMAGE, INSPECTION, REPAIR
GRADING, DRAINAGE & SITE WORK
HOUSE PARTS, DEFINITIONS
INSECT INFESTATION / DAMAGE
KIT HOMES, Aladdin, Sears, Wards, Others
LOG HOME GUIDE
MOBILE HOMES, DOUBLEWIDES, TRAILERS
MODULAR HOME CONSTRUCTION
MOISTURE CONTROL in BUILDINGS
PORCH CONSTRUCTION & SCREENING
PRE-CUT & KIT HOMES
RETAINING WALL DESIGNS, TYPES, DAMAGE
ROT, FUNGUS, INSECT DAMAGE
SINKHOLES, WARNING SIGNS
STAIRS, RAILINGS, LANDINGS, RAMPS
STRAW BALE CONSTRUCTION
STRESS SKIN INSULATED PANELS
STRUCTURAL WOOD ASSESSMENT
TIMBER FRAMING, ROT
TRUSSES, Floor & Roof
WATER ENTRY in BUILDINGS
Frog data measurements: how might we determine the slope of a frog's head from nose tip to eye-top? Here we describe measurements that let us calculate the frog's head slope in degrees and we cite an alternative method using a folding ruler that could have been used to get frog (or other animal) dimensions from a distance - which sometimes is a better idea. .
This article series gives clear examples just about every possible way to figure out any or all roof, stair, or other building slopes & construction dimensions and measurements expressing the area, width, length, slope, rise, run, and unit rise in inches per foot.
Green links show where you are. © Copyright 2014 InspectApedia.com, All Rights Reserved.
With just a small amount of effort one could calculate the slope of anything, even a frog's head. We measured this frog's head last spring. The frog was too nervous to allow use of my ANGLE FINDER LEVEL, so I took a different approach. I made some rough measurements of his little head.
[Click any image to see an enlarged, detailed version]
Dimension (a) from the frog's nose to the top of his eye was 0.75 inches.
Dimension (b) from the frog's nose to directly under the top of his eye turned out to be 0.63inches.
Dimension (c) - the green line happened to be 0.5 - about a half of an inch.
At this point the frog left before I could get out my angle measuring protractor. But the tangent function came to the rescue.
Using Tangents to Study Frogs
or for the particular frog under examination,
Tangent (Frogs head slope) = (c) / (b) = 0.5 / 0.63 inches = .873
I used Tan-1 (0.873) to convert the tangent to slope in degrees = 41 degrees - which looks about right, right?
This frog's head slopes from nose to eye top at 41 deg.
A neat trick that we could have used to measure the angle of the frog's head without ever getting close to it is shown using a folding ruler explained at ROOF MEASURE by FOLDING RULE.
You can calculate slope of anything, even a frog if you know just one or two measurements.
Details are in the articles listed just below.
You can estimate the roof slope from the ground by any of several methods described at ROOF MEASUREMENTS,
A sickening amount of fun and explanation of messing with roof slopes, angles, rulers, and a protractor are demonstrated at FOLDING RULER ROOF SLOPE CALIBRATION
Obviously there are other very precise ways to make measurements from a distance, as any surveyor knows, using geometry, trigonometry, and instruments such as a sextant, dumpy level, a theodolite, GPS devices, and more.
Green link shows where you are in this article series.
Frequently Asked Questions (FAQs)
No FAQs have been posted for this page. Try the search box below or CONTACT US by email if you cannot find the answer you need at InspectApedia.
Check the FAQs just above, try the search box just below, or if you prefer, post a question or comment in the Comments box below and we will respond promptly.
Search the InspectApedia website
HTML Comment Box is loading comments...
Technical Reviewers & References
Related Topics, found near the top of this page suggest articles closely related to this one.