Top new questions this week:
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I am (partially) disassembling an old sewing machine to clean it up.
While removing the bobbin winder, I found this thing that has a screwdriver slot, but it isn't a screw.
This is the part:
It came ...
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I was having a look at the bending stress derivation in few of the books. The derivation indicates how each of the element in the bending stress equation is derived into that equation. However, for ...
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This isn't mine, but I own one of these and I have no idea what it is. With the spike attached it looks like a marking gauge of some sort.
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As shown at this skeptics SE post, there are ships that carry other ships as cargo, etc...
My question: how are the ships stacked onto the flat bed ship? Is there some kind of specialized crane that ...
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All the example of bode plots I see in textbooks are of stable systems without delay. I wanted to know if bode plots can be drawn for unstable systems with time delay.
Using the usual method to draw ...
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The engineering problem that I am trying to solve is the following: I have two elements of a magnetic circuit that I must keep in contact through threaded fasteners. The primary objective is to ...
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In weld symbols one can specify the finish of the weld. In flush weld, for example, one needs to level the weld into a flat surface. I can imagine when this is needed: if something is required to rest ...
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Greatest hits from previous weeks:
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I was studying the designation of names to refrigerants.
The following is the basic formula:
R - (m - 1) ( n + 1) ( o )
where:
m = number of carbon atoms in the refrigerant
n = number of hydrogen ...
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We all know if we use less electricity we save energy.
But the energy we're getting is result of burning (not necessarily the literal meaning) the fuel. Even if we don't use that energy that fuel is ...
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I want to affix a cantilever to wall. I will support the other end of the cantilever with a strut made of wood, that attaches to some point on the wall below the cantilever, as shown in this sketch (...
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I've seen it in several data sheets - it is a measure of error of some kind, of course. The problem is I dont know the exact meaning. I've seen it in the context of repeatability, accuracy and ...
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In fluid kinematics I can't understand the meaning of these terms : vorticity and circulation.
Can somebody give me a description of these terms so that a lay person can understand them easily?
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I have a pump that I want to use to pump a solvent. It is hard black plastic so I'm pretty confident it is either ABS or polypropylene (it wasn't expensive enough to be some more exotic plastic).
My ...
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As I know so far, mortar and grout are mixtures of cement paste and fine aggregates, but both of them play different roles in the construction site. Is it true that grout has more strength compared to ...
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Can you answer this question?
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From my understanding, Nozzle's and throttling valve are devices which both trade pressure for velocity, so they increase velocity at the expense of having to decrease the pressure. If we examine ...
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