Top new questions this week:
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I’m designing a weather buoy as a school project. I have read that the metacentric height is a good measurement for buoy stability and is relatively easy to calculate. This page says the metacentric …
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What does this dimension (see image), and particularly the divide symbol in it, mean please? I’m not a mechanical engineer and couldn’t find the answer by searching for terms with the word “…
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I’m currently doing a project on magnetic haptic feedback using DC electromagnet. The principle of my haptic feedback system is very simple (figure shown below): A permanent magnet is stuck to the …
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In 2018, a female cyclist set the outdoors record for fastest cycling clocking in at almost 300km/h. (en.m.wikipedia.org/wiki/Denise_Mueller-Korenek), and I am curious to know the approximate …
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Greatest hits from previous weeks:
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I am completing a question that is requiring calculation of the work done in a polytropic process. In the worked solutions the work equation seems to be reversed for the answer, as can be seen in the …
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Recently I was thinking about home improvement, and one idea that is haunting me is that I could use some kind of refrigerator for gaming consoles and laptops. The obvious benefit is that it maintains …
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Why the Fixed End Moment (FEM) for BC is 3PL / 16? It’s clear in the first figure that that when one end is fixed, while the another end is pinned, then the fixed end moment is 3PL /16 … But for …
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My mother was born 1950. Me in the mid-1980s. All my life, she’s been saying that I must never stick a metal object, such as a knife, into the toaster, because it will electrocute me. I’ve always been …
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As a layman, how can I know the shear strength of a particular size bolt? For example, if I want to attach something to the internal wall of my van ( 1mm stainless steel ) using a rivnut and standard …
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…or in other words, why doesn’t the material just stick to the screw, rotating in place, without progressing along its length? In the simplest case, the answer is obvious: gravity. If it’s a …
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What are the criteria for choosing repeating variables in Buckingham’s Pi theorem in dimensional analysis? In many problems, it’s solved by taking D,V,H (Diameter, Velocity, Height) as repeating …
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