Here are a few answers for Pawel's questions, most of them connected to technical drawing. When he said "geometria wykreślna" I thought he was joking, but there is really such a thing. As I learned, it's the basic engineering skill needed for technical drawing and allows to present objects in 3D. In English, it's called descriptive geometry (can you have a look at this video to check if this is what you wanted?) and here's one example of its application.
To practice descriptive geometry, you need a set of drawing tools. First, you need a compass (cyrkiel) to create circles and arcs. Another useful instrument is a set square (ekierka) that helps draw angles. For straight lines you may use a ruler (with measurements) or a straightedge (without measurements). To measure angles, circles and semicircles engineers make use of protractors.
Another key geometry expression you often ask about is a cross section (przekrój poprzeczny), here a cross section of a pistol, but I couldn't find an easy translation for "przekrój podłużny". Can you help me understand the difference by commenting?
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You are right. This short film shows the descriptive geometry. I think most of us (employees of PIMR)had this subject at study. Personally I enjoyed it very much...
ReplyDeleteHow about cross section - In my opinion it is the drawing of crossed part or assembly, but it must be crossed across (perpendicular to the axis of symmetry of such part). For example if we have a shaft, if we want to have a cross section we must cut this shaft perpendicular to it's length. If we want to have "przekrój wzdłuży" we must cut this part parallel to it's length. And of course - in my opinion it isn't "podłużny" - it's "wzdłużny". ...If I well remember. ...Sorry for mistakes if there are...
Thanks, that clarified a lot of things for me. So, what you called "przekrój wzdłużny" is often called a longitudinal section (which means it's a picture of an object when it's cut along its longest axis). The cross section (= przekrój poprzeczny) is a view of the object when it's cut across. Thanks.
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