Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
hiccuphippo
on May 17, 2019
|
parent
|
context
|
favorite
| on:
An old artifact kept in a vault outside Paris is n...
The unit of length is also defined in terms of the unit of time (distance travelled by light in a specific interval of time) ;)
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search:
