Top new questions this week:
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I was wondering how it was possible to calculate the volume of partially submerged horizontal cylinders and the center of buoyancy considering that these horizontal cylinders are just the supporting …
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I have come across two definitions of kinematic viscosity and I am wondering about their relationship and significance in engine oils. One definition describes kinematic viscosity as momentum …
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I need to distill water. Vapor compressors are the best choice. However, difficult to find small scale vapor compressor. I am exploring the feasibility of rotary screw compressor used in refrigeration….
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The displacement history of one story structure is known due to an unknown ground motion. The dynamic properties, such as mass and lateral stiffness, are known, and dimensions were also given. How to …
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I’m wondering how to accomplish some kind of gear box that would reverse only the direction of one side of the two shafts on it, like in the picture below.
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I’m trying to design a coffee table for a tightly constrained space that can lift up to become a dining table. I’ve drawn the CAD for this design, but I’m concerned that the moment arm on the linear-…
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Greatest hits from previous weeks:
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The lower viscosity of water reduces friction. Besides, the water can transfer heat way better than oils. So why not use water as a lubricant in wind or hydro turbines, especially on equipment which …
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what is the difference between a PI and a PD controller? In which instance or for what kind of sensor(s)would you use one as opposed to the other?
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When designing reinforced concrete slabs it is common to divide the slab into ‘design strips’, which are then used to rationalise the reinforcement design along (typically orthogonal) lengths of the …
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I understand that for a rectangular c-s the shear stress distribution is parabolic and the max shear stress occurs at the neutral axis and has a value of 1.5V/A. Where V is the ‘applied shear force’ …
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Screenshot of a video where they are featured in the background: They appear to have no electronics built in, such as an electric charge station, or a parking ticket dispenser or something like that….
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I have an Arduino board with a 9 degree of freedom sensor, from which I must determine the pitch, yaw, and roll of the board. Here is an example of one set of data from the 9-DOF sensor: …
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Despite having so much technological advancement, I wonder why cars still uses mirrors (right and left side of the driver) for the rear view. These mirrors can be easily replaced by cameras and …
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