Questions tagged [engineering-general]

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7
votes
2answers
405 views

Industry standard factor of safety for ballast design

What design standards exist for the design of ballast against uplift forces, and what factor of safety against uplift do these design standards promulgate? I am familiar with a typical FS of roughly 1....
6
votes
4answers
942 views

Are Scientific Calculators still current? [closed]

I've been a civil/structural engineer for 20 years now. My HP 48GX has recently done its last calculation. So I looked for a replacement and it seems that the market for scientific/graphing ...
3
votes
0answers
49 views

clockwork motor output in joules formula

I'm trying to understand the output of clockwork coils in joules or watts for different coils. You know the pullback car or windup pocket watch mechanism. I have heard it also called power in the ...
0
votes
0answers
30 views

Clarification on number of poles(magnetic) and induced/output voltage

I get that turning a loop of wire across a pair of magnetic poles induces a magnetic field. But I don't really understand how frequency plays a role in this. I've read a bit and saw that frequency is ...