Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
stephengillie
on July 3, 2015
|
parent
|
context
|
favorite
| on:
Compasses don't work on Mars, so how do you naviga...
Surface tension is magnetic attraction between molecules. There's not enough negative magnetic attraction to hold them; they're repelled by all the other molecule nuclei.
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search: