how to read a tape measure? What does the black diamonds represent?
602032
it is 19.2 inches, and it  Has something to do with truss layout.
492566
Retail value will be around $25k. However, this is rough since there is not nearly enough information to give an accurate assessment of your diamond.
151657
There is no answer to that question.\n\nMillimeters is a measure of length and arc seconds are a measure of angle. It's like asking how many mm in 30 degrees.\n\nYou need to know the distance to the object or thing that you are measuring to be 0.2 arc seconds across. Then you can use the pythogorean theorem to calculate the length in mm. (As long as the object is reasonably far away, if it is very close then you can't make the approximation of a right triangle.)\n\nadded:\nkirchwey is absolutey correct!\n\nach! its been too many years since I did this stuff!
352137
if you are reading sheet music it has to do with a time signature. I the top number indicates how many beats are in each measure while the bottom means what type of note gets the beat. If you were refering to the size of a violin the sizes are 1/16 1/4 1/2 3/4 and4/4. A full size violin is 4/4 so a 1/2 violin is half the size of a full size.
860146
The first value represents the (average) Minimun length recorded, the second the Average and the last the Maximum measured values. \nLength............141,5 mm..........161,5 mm..........181,1 mm. \nCircumference..117,5 mm.........127, 3 mm.........137,8 mm.\nKensey data are quite old. These statistic is the last one.
1111107
You can count fringes when illuminating the film with a monochromatic light source. This will give you relative thicknesses across the film.  You can make an assumption that at the top where there are NO fringes and the dark part keeps stretching that the thickness is less than half the wavelength of light you are using and at the first bright fringe it is about the wavelength over 2 thick.  \n\nIf you use a sodium lamp for your light source, take care to use a low pressure sodium lamp.  High pressure lamps are nothing near monochromatic
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
882717
The first number ( "26" or "700" or "27") indicates the tire and wheel diameter. The second number ("1.5," "2.0," "25c," and "1 1/4") refers to the width of the tire as in 1.5 inches; 2.0 inches; 25mm; and 1 1/4 inches; and so on.\nDon't be confused by the road bike tire designation "c" as in the size 700 x 25c. The "c" is just a French tire size, it doesn't stand for a numerical measurement.
704846
On LCD monitors, dot pitch is typically from .16 to .29mm\nSamsung does as do most manufactures. .28 mm is not a special item.\n\nI normally don't say this but, google it.\n\n( you will get a better response if you don't post the same question over and over, it is like spam)\n\ndon't be a leach, people take the time to answer your questions.\nrespond and pick a best answer or ask for more info.
939259
Best Answer - Chosen by Asker\n\nBlack diamonds were introduced by debeers around 1989/90 at the nec spring fair (jewellers trade show). They were a way of using industrial diamonds (grey,brown,white but severly flawed,through to black, usually reserved for drills, tools, abrasives). They sorted the pure black ones, and cut them into jemstones, like regular diamonds. They never really took off, and, because of the black being patchy within the rough stone, there were only small gemstones cut, containing only the uniform dark black areas, of the rough stone. Now with pink diamonds becomming popular (these are usually colour enhanced by radiation) small uniform colour diamonds of different colours are popular. By small we mean in use in pave' setting ("encrusted effect") channel setting of eternity rings, Bling style words/names as pendants, encrsted with small stones. So now, the new "black" diamond is trendy! You will never really see one as a large single stone in a solitare ring. Diamonds, of all sizes naturally occur in differnent "hughes" (rather than bold colours) and a popular yellow hugh is called a canary diamond. Good flawless colour commands higher prices than white, of the same quality. An off shade, (grey, or ununifrorm colour) lessens the price. The "hope" diamond which was featured in the titanic film (it never really was on board in real life, a bit of romance, based on an actual diamond) is 45 carats and the pure blue of a light sapphire, dark blue topaz, only more so! A proccess has now been achieved, to grow in a lab, proper diamonds, that show as genuine on all heat dispese testing equipment as used by retail jewellers. They are chemically, Diamonds. These can be created in any uniform colour by adding metal oxides during growth of the crystal. these must be labelled as created diamond. NB. they are not c.z, or any of the shopping channel simulants. They are not cheap either, compared to c.z, but comparitevly so compared to natural, mined diamond.
473756
diamond will have a huge refractive index because of its structure. that can be used to detect it.
1158457
First of all, the "laser" tape measures that they sell at Home Depot are not laser based at all.  They use ultrasonic reflectometry.  The laser is a simple pointer.  The measurement is made by an ultrasonic pulse that reflects off of a flat surface and the distance is calculated by the time it takes from the start of the pulse to the time of return of the reflected pulse.  This time is divided by the speed of sound in air (1130 f/s @ 70 degrees F) to give the distance.  The resolution of these intruments is +/- ~1".
652379
It will be \n1, \n3, \n9 and \n27. \n\nAnd you can easily get all the measurement from it. I ve counted all that.
405248
The standard way of testing if something is diamond is to do the scratch test.  Because diamond is so hard only diamond will scratch diamond.  There are more technical methods to determine phase, e.g. X-ray diffraction, Spectroscopy techniques etc. but I guess that they are not available to you.
55982
for measuring the length of things though each gives you a different unit.
457022
I'm pretty sure it is a Diamond. Here's my reasoning:\nDiamonds family name = carbon = black in appearance\n"Give a girl a buck" = Diamonds are a girls best friend\nMany nice colors = Refraction of light through a diamond displays many colors.....
773165
There is an equipment use in jewellries store,..to check wether a diamond is genuine or not.If the jewelry is diamond,..this equipment will make a beeping noise/alarm.\n\nIf u can borrow..one of this equipment,..it will be faster.