The name stems from one of the first practical methods of copying images without simply tracing them by hand. John Herschel invented a way to do it with chemicals in 1842, and the process (called cyanotype) involved turning the paper blue.
You would do your drawing on a very thin piece of cloth or paper and lay it over a piece of regular paper that had been soaked in the key chemicals. Then, after being exposed to bright light, the paper would turn blueâ€”except where the drawing was blocking the light from getting to the paper, leaving those lines white.
The process was extremely popular until Xerographic copies and computers started to take over, but the name stuck. Now, many blueprints are blue in name only.
When the two papers are exposed to a bright light, the two chemicals react to form an insoluble blue compound called blue ferric ferrocyanide (also known as Prussian Blue), except where the blueprinting paper was covered, and the light blocked, by the lines of the original drawing.
It’s because of how those documents are made. The blueprinting process was developed in the mid-1800s, when scientists discovered that ammonium iron citrate and potassium ferrocyanide created a photosensitive solution that could be used for reproducing documents.
The process goes like this: Someone creates a drawing on translucent tracing paper or cloth. The drawing is placed over a piece of blueprinting paper, which has been coated with a mix of ammonium iron citrate and potassium ferrocyanide from an aqueous solution and dried. When the two papers are exposed to a bright light, the two chemicals react to form an insoluble blue compound called blue ferric ferrocyanide (also known as Prussian Blue), except where the blueprinting paper was covered, and the light blocked, by the lines of the original drawing. After the paper is washed and dried to keep those lines from exposing, you’re left with a negative image of white (or whatever color the blueprint paper originally was) against a dark blue background.
Today, when I think about blueprint printing, it is said that the cost of this kind of drawing is lower than that of direct printing, and the storage time is longer. But now we use CAD. The electronic files are kept longer and the cost is not high. I searched the internet to find out. Whether there is such a practice in the developed countries of formal enterprises and the machinery industry.
Why are engineering drawings and mechanical drawings blue? You may know that the word blueprint comes from this. I didn't know why the drawings should be blue before. I couldn't restrain my curiosity. I need to know.
In fact, the reason why these drawings are blue is related to their drawing methods. These drawings are not drawn or printed, but "sun-dried". Maybe in the streets, there are always some signboards like sun print pasted on the door of the printing agency, which refers to this.
The drawing was originally drawn on sulfuric acid paper, which is a kind of translucent paper. When drawing, a needle pen and ink should be used. Of course, many of them don't need to use a needle pen to draw, because CAD can directly draw and print on sulfuric acid paper. But when we went to school, we learned how to use a needle pen to draw on sulfuric acid paper. It seems that we want students to retain some basic skills. But to be honest, my pen has been used so many times. What I drew are the drawings that I handed in my homework. Maybe the course won't exist in the future.
The drawings drawn on sulfuric acid paper can't be used directly because it's very thin and easy to break. He is just the base map, with which many copies can be made.
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Ammonia printers, large-format copy machines that were around before toner was a thing. Ammonia prints are characteristically blue.
because literally, blueprints has the word "blue" in it!
They are made from the bluetree
because they are blue and printed
Blueprints are usually drawn by an architect. In some cases interior designers will also draw blueprints. The other group of people who regularly draw blueprints is students and apprentices of architecture.
I think its called blueprints.
Go to the library they have blue print books for any vehicle.
You find handy smurfs blue prints in his house
Here is how to get blueprints of your home: Locate the contractor who originally constructed your property. Go to the county clerks office where you live and ask for a copy of the blueprints, they are on record and are kept there.
If you ever wondered why blueprints were blue and not black or red or white or brown or any other color than blue, well, it's not because architects really like the color but because the technique in making blueprints caused the paper to turn blue.
Blue Ivy. JAy-Z named her after his album blueprints
The nucleus of the cell contains the blueprints to run the cell. The blueprints are contained in the DNA.
Yes, you can receive blueprints online as long as the structure is already built and is still standing.
please show me the blueprints
Because the blueprints are plans of what they have to construct.
There are a number of places where you can get the blue prints for a hamster cage. You can ask a company that makes these cages for example.
How do you download the blue prints on G- force the game on DS
Blueprints can be accessed in Thrillville by selecting 'Blueprints Mode' from the main menu. You can then see blueprints of roller coasters, entertainment stands, and other rides.
The cell nucleus contains the "blueprints" for the production of protein. The "blueprints" are the DNA contained within the nucleus. DNA is often called the blueprint of life.
Once you have been released from the cage there is blueprints that are right above the table. Click o them and you have the blueprints.
It is on the wall isde the gaget room it is the wall where G is standing. This is if you mean the blue print for the kite
The blueprints are rolled up in the window near the factory roof. If they aren't there, you already have them in your items. There is no reported glitch with the blueprints.
It is a process of photographic printing, used in copying architectural and mechanical drawings. This produces a white line on a blue background
The genetic blueprints(DNA) are located in the cell's nucleus.
If you are talking about the Blueprints Background, it was an old item.
The crafting blueprints aren't stored locally. Therefore, you can't alter the blueprints to easier craft hats.
You can get car blueprints by contacting the manufacturer of the vehicle. They may charge a fee to send them to you.
There is a comic called battlebooks very rare with blue prints of the suite look for iron man edition .............