-1
votes
2answers
331 views

Where can I find spring force problems, with solutions, that involve rectangular coil springs [closed]

Where can I find compression spring force problems and associated solutions that utilize rectangular coil springs?
5
votes
4answers
606 views

Alternate layman's metaphors for illustrating curved space-time

The metaphor of a surface (typically a pool table or a trampoline) distorted by a massive object is commonly used as a metaphor for illustrating gravitationally induced space-time curvature. But as ...