Top new questions this week:
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I am using this little internal turning tool I have gotten from some company long ago as it was too worn out for them to use. By the time i gotten it for me as hobbyist, it was stil good for me to do …
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I am looking for the name of a mechanical piece. Here is the description: The piece would be a telescopic rod of about 1 cm in diameter and 30 cm in height that would constantly try to extend …
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Regarding pumped storage hydropower, In the case of some high altitude upper reservoir that feeds several turbines located at the bottom of a valley, where there’s a lower reservoir too. Assuming in …
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I heard the following statement engineering.stackexchange.com/a/54322/40848 if we have a type III system, or one that has three or more low-frequency poles that we’re closing around, then we …
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I am learning about theoretical DC motors where the rotational motion is produced due to torque on either side of a coil. However, after researching real DC motors it seems to me that the winding …
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The Wikipedia article has a completely separate table for Lamé parameter conversions in the 2D case. Philosophically, why is there even a different table for 2D if these parameters are meant to …
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Greatest hits from previous weeks:
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I am calculating the air mass flow rate in kg/s for air in a numerical model, and i want to compare the results with an experimental investigation, the flowmeter unit is l/min. how can I convert l/min …
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I’ve heard that materials that need to slide against each other should be of different materials. Why is that?
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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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Why do we design foundations at SLS and not ULS? If we use ULS wouldn’t we be taking a higher factor of safety? SLS = Serviceability limit state. It considers how the structure is actually expected …
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I want to make a “gearbox” that will transform input rotational movement to an output rotational movement with the same speed but in the different direction (clockwise / counterclockwise) on the same …
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Given: My thermodynamics text reads as follows: In SI units, the force unit is the newton ($N$), and it is defined as the force required to accelerate a mass of $1\cdot kg$ at a rate of $1\cdot\frac{…
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I am very confused with something regarding bikes… How is it that a bike wheel continues to spin (either from momentum or from going downhill) when the rider is not pedalling, without also spinning …
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