how to read a tape measure?
108154
ok, you have 1 inch, the lines are all just fractions of that inch.  The line in the middle is one half of an inch, like 1/2.  The quarter inch line divides that inch into 4 sections therefore it is 1/4 of an inch, there are 8 eighths, 16 sixteenths, etc.  Example, 3/4 of an inch is just 3 of those 1/4 inch lines...  hope this helps...
168189
You multiply the decimals by 12 and the whole number will represent the amount on inches. If there are decimals left from the past result, then multiply these decimals by 8 if you are using the units that divide the inch in 8 parts or multiply them by 16 if you are using the units that divide the inch in 16 parts.
9774
http://www.lowes.com/lowes/lkn?action=howTo&p=Build/TapeMeasure.html
835130
The word you're looking for is "measured"..?
1146491
Look for caliper (spelling counts).  Specifically, Vernier Caliper, and micrometer.  \n\nThose are the two major precision measuring tools.  Try the starrett.com web site.  They have a sterling reputation for quality.
400317
If you want to measure the volume of sound, it is measured in decibles.\n\nIf you want to measeure the width or band or sound it is measured in Hertz or mega hertz. For this you need an oscilla scope.
313040
The coefficient of thermal expansion of steel (assuming you are using a steel tape) is about 0.0000065/ degree F. A difference of 15 degrees in temperature will cause a change in length of nearly 0.01 feet in a 100 foot tape. Therefore a measurement made with a steel tape on an extremely hot day in the summer cannot be expected to agree with one mage during zero weather.\n\nThere is a formula for this (in English system) for the amount for correction for temperature:\n\nC=Lα(T-t)\nWhere C is the correction applied\nL is the length in feet\nT is the temperature at which the tape was used\nT is the temperature at which the tape was standardized\nΑ is the coefficient of thermal expansion.\n\nThere should be a formula just like this but with a different coefficient of thermal expansion in metric.
606521
Try this:\n\nhttp://education.yahoo.com/reference/weights_and_measures/
555699
I think I can help you with this one... I learned how to do it in Kindergarten.\n\nPull your head out of your ass and measure.\n\nGood Luck!
653629
SI unit for length is 'meter'
982223
You can't answer this without knowing the tape thickness.  Of course, you can solve it generally for any set of variables.  Call the initial radius (10") D, the hub radius (3") H, the tape thickness b, the rotation rate w (in rpm) and the instantaneous radius r.\n\nThe radius decrease by b after each revolution (call the revolutions x).  The rate of change of the radius with time t is:\n\ndr/dx = -b\n\nThe definition of rotation is: dx/dt = w\n\nBy the chain rule: dr/dt = dr/dx * dx/dt = -bw\n\nAs expected, the radius decreases at a constant rate.  The radius after 1 hour is:   D - bw * (1 hour)\n\nThe amount of tape unwound is just the difference in the area of the roll divided by the tape thickness:\n\nL = pi*(D^2 - (D - bw * (1 hour))^2)/b
358967
Cubic footage measures the volume something occupies like a box or a desk.  Lineal footage measures the distance between two points.  So, if you wanted to know the size of one side of a box with a cubic footage of 12 cubic feet (ft^3), you would divide by the two known sides, say one side with a length of 2 ft (lineal footage), to get 6 square feet (ft^2), a surface footage measurement.  Then divide the 6 ft^2, by the other side, say 3 ft, to get a lineal footage of 2 ft.  \n\nThis may not answer your question, you may be asking for a perimeter measurement which is a different calculation, but you would need the side measurements for that also.
789266
Of course, it really depends on what lengths, masses and time increments you are trying to measure and why.  The key is to have a foundation reference point with each measurement.  But here are some ideas:\n\nLength:  A piece of string or a piece of paper is good tool.  If you need to know exactly how many feet something is, a common record album is 12 inches across ( 1 foot) or a standard floor tile which is 12 inches from one flat side to its' opposite.  Use this as your foundation length of your string.  For long distance you can guage the length of your footstep using the above method, then count your footsteps when walking constistently, or use the odometer in your car.  Not a precise technique but approximate.\n\nMass:  A bucket filled to the top with water, placed inside another bucket that can catch spilled water.  Let's say you want to find the mass of a bowling ball.  Simply place the bowling ball into the bucket filled to the top with water, and whatever water it displaces (and is caught in the second bucket), is its mass (example: 1 gallon).  Repeat these steps to find out the mass of other things like your dog.  It's not an exact science but it's a basis for comparison at home as long as you keep using the same buckets.\n\nTime:   The sun is always good for this since our clocks are based on exposure to it due to rotation of the Earth every 24 hours, and our revolution around it once a year.  It's how sundials work.  You use a shadow.  You can mark the position of a shadow with a pen or a scratch, then observe (and mark) how the shadow has changed at a later moment.  When sunlight is not available, candles are good to observe the passage of time in a similar way as they burn and melt, as long as you keep using the same kinds of candles.
1033464
Whenever you make \na measurement, you have some error. How much the error is depends on \nthe equipment you are using to make the measurement and how you use \nthe equipment. If you are measuring the water in the beaker by looking \nat the volume markings, the accuracy of your measurement of the volume \nof water depends first on how you look at the water. That is, are you \nmeasuring at the top or the bottom of the meniscus? (The meniscus is \nthe curved shape of the water's surface caused by its surface tension \nand interaction with it's container. If you aren't sure what this \nmeans, go get yourself an ordinary glass of water and look at how the \nwater curves up where its surface touches the glass.) The second is \nhow accurately measuring lines are painted on the beaker. The third is \nhow thick the measuring lines are: i.e., is it the top, middle, or \nbottom of the measuring line that is the correct measurement?\n\nFor measurements you make in numerous steps that you add together, \neach additional step introduces more error. Let's look at the water in \nthe beaker again. If you have a 500ml (milliliter) beaker, but need 10 \nliters of water in a bucket, you will have to fill the beaker 20 times \nand empty into a bucket. If you consistently put in only 499ml, you \nwould end up 20ml short of water in your bucket. \n\nNow, let's look at measuring distances. If you measure your room with \na professional measuring tape, you will be more accurate than if you \ntry to measure it by laying meter sticks end-to-end. However, if you \nare measuring a real room, you also have to decide where you are going \nto measure it. Most people might measure it on the floor along one \nwall. But is the opposite wall exactly the same length? If you measure \nit at the ceiling, is that exactly that same length? Is the wall \ncurved? (Put your head against a wall and look down a hallway - you \nwill probably see waves and curves in the wall.)\n\nIn short, the term "greatest possible error" has no meaning unless the \nmeasurement method is specified, the error of the measurement method \nwhen done by properly trained people is known, and the people who are \ndoing the measurement have been trained properly.\n\nMy discussion has been based on the assumption that the room is \nreally seven meters long. But what if you are going to build a room \ndesigned to be seven meters long, then measure it. The room is built \nbase on a lot of measurements, so it may or may not be seven meters \nlong before you measure it. You now have more sources of error.\n\nMy discussion is also based on the the assumption that you were \ntalking about measurement error. On thing you have to know \nabout dimensions (e.g., length, diameter, radius, angle, etc.) when \nyou design something is that the dimension always has a tolerance \nstated or implied. That is, if you get a blueprint that says a \ndimension on a machine part is 37.2 millimeters (mm), some place on \nthat blueprint it will say something like "Tolerance for xx.x is \n+/- 0.03." (The "+/-" is read as "plus or minus.") That means that for \na dimension like 37.2 millimeters, you can actually build it so that \nit is anywhere between 36.9 and 37.5 millimeters. Alternately, it will \nbe stated with the dimension as 37.2 +/- 0.03. This means, once again, \nit can have the dimension between 36.9 and 37.5 millimeters.\n\nIf the question really has to do with tolerance, it may depend on how \nyour seven meters is written (i.e, 7m, 7.0m, 7.00m, or even as 700cm). \nIn these cases, you you might reasonably assume that the tolerance is \none-half the last digit. That is, for 7.0 meters, it is +/- 0.05m, for \n7.00 meters, it is +/- 0.005m, for 700cm it is +/- 0.5cm. This \nreasoning implies that 7 meters would have a tolerance of +/- 0.5m, \nbut you have to ask yourself if a tolerance of half a meter in seven \nmeters (about 7 centimeters in a meter) is
1097480
read the instruction manual
50005
Principle of Screw Gauge:\n\nTo ascertain the dimensions, quantity, or capacity of: measure. Archaic mete. Idioms: take the measure of. See big/small/amount.\nTo make a judgment as to the worth or value of: appraise, assay, assess, calculate, estimate, evaluate, judge, rate1, size up, valuate, value. Idioms: take the measure of. See value/worthlessness/evaluation.
392625
use scotch tape. If there is a clean break, just tape it on both sides, you might see a small skip, that's all. If the tape has been stretched you need to cut that part out and join the two ends.