Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
srean
3 months ago
|
parent
|
context
|
favorite
| on:
Why does paper fold so well?
I think wetting and drying of paper is a bit like heat treatment of steel. The fibres find a new local minimum stable position, prompted by the swelling and the shrinking.
IAmBroom
3 months ago
[–]
Exactly. They were initially rolled, not merely pressed, which implies a longitudinal strain during the pressing moment.
Consider applying for YC's Winter 2027 batch!
Applications
are open till November 2.
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search: