Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
jfoutz
on Oct 15, 2015
|
parent
|
context
|
favorite
| on:
Page Weight Matters (2012)
In WW1, helmets were introduced to protect soldiers. Surprisingly the frequency of head wounds went way up. It took a little while to realize soldiers were "just" being wounded, rather than outright killed if they had no helmet.
BostonEnginerd
on Oct 15, 2015
[–]
There's a similar story about putting armor on planes during WWII -
http://www.johndcook.com/blog/2008/01/21/selection-bias-and-...
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search:
