Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
mistercow
on May 10, 2013
|
parent
|
context
|
favorite
| on:
The human-powered helicopter challenge
If practicality were the point, lifting gasses wouldn't be prohibited.
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search:
