the.com/coil spring
A metal slinky with a job: store force, then violently disagree with it.
means A wire wound into a helix that stretches or compresses to store mechanical energy and push back against whatever squeezed or pulled it.
from 'Coil' traces back to the Latin 'colligere' — to gather or collect — via French 'cueillir,' the same root behind 'collect'; a coil is literally wound-up, gathered wire. 'Spring' comes from Old English 'springan,' to leap or burst forth, the same root that gives us a spring of water jumping from the ground. Put them together and the name is almost a tiny physics lecture: something gathered tight, waiting to leap.
- shape secret
- helix stores energy as twist, not bend
- everywhere
- pens, mattresses, cars, pogo sticks, locks
- physics name
- Hooke's law in hardware form
- compression vs tension
- same coil, opposite job depending on winding