Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
lmm
on Aug 13, 2013
|
parent
|
context
|
favorite
| on:
Hyperloop Alpha [pdf]
On the Beijing subway there are adverts on LED displays on the tunnel walls that move along with the train, keeping pace outside the windows.
Consider applying for YC's Fall 2026 batch!
Applications
are open till July 27.
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search:
