Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
|
from
login
Analysis of ice screws in climbing
(
jjgeng.com
)
131 points
by
Phithagoras
on Sept 18, 2016
|
past
|
32 comments
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search:
